# Ingrown Toenail (Onychocryptosis)

- Category: infectious
- Review status: reviewed (every claim checked against a document named on this page)
- Sources: NICE Clinical Knowledge Summaries: Ingrown toenail 2022 · Ibuprofen 100 mg/5 ml SmPC section 4.2 (eMC product 4560) · Egyptian National Drug Formulary - Antimicrobial 2023 (amoxicillin and clavulanate monograph) · No labelled dose - a procedure, not a medicine · StatPearls: Ibuprofen (NCBI Bookshelf NBK542299) · ARZOL Silver Nitrate Applicators (silver nitrate 75% / potassium nitrate 25%) DailyMed label, Indications and Application (SetID 23b83457-8cbc-26f1-e054-00144ff8d46c)
- Verified date: 2026-08

## Verified against

- No labelled dose - a procedure, not a medicine
- Egyptian National Drug Formulary - Antimicrobial 2023 (amoxicillin and clavulanate monograph)
- Ibuprofen 100 mg/5 ml SmPC section 4.2 (eMC product 4560)
- Ingrown Toenails - disease-level clinical article (ingrown-toenail-clinical.txt)
- MSF Essential Drugs 2024 (ibuprofen oral monograph)
- ARZOL Silver Nitrate Applicators (silver nitrate 75% / potassium nitrate 25%) DailyMed label, Indications and Application (SetID 23b83457-8cbc-26f1-e054-00144ff8d46c)
- Ingrown Toenails - disease-level clinical article (ingrown-toenail-full.txt)

## Treatment metadata

- Conservative nail management and warm soak
- Referral & safety-netting (no drug therapy)
- Amoxicillin + Clavulanic acid — 625 mg — oral.solid
- Ibuprofen — 400 mg — oral.solid
- Silver nitrate — topical

## Complete treatment card

```text
INGROWN TOENAIL (ONYCHOCRYPTOSIS)
Sources: NICE Clinical Knowledge Summaries: Ingrown toenail 2022 · Ibuprofen 100 mg/5 ml SmPC
         section 4.2 (eMC product 4560) · Egyptian National Drug Formulary - Antimicrobial 2023
         (amoxicillin and clavulanate monograph) · No labelled dose - a procedure, not a medicine ·
         StatPearls: Ibuprofen (NCBI Bookshelf NBK542299) · ARZOL Silver Nitrate Applicators (silver
         nitrate 75% / potassium nitrate 25%) DailyMed label, Indications and Application (SetID
         23b83457-8cbc-26f1-e054-00144ff8d46c)
Review status: REVIEWED against No labelled dose - a procedure, not a medicine, Egyptian National
               Drug Formulary - Antimicrobial 2023 (amoxicillin and clavulanate
               monograph), Ibuprofen 100 mg/5 ml SmPC section 4.2 (eMC product
               4560), Ingrown Toenails - disease-level clinical article (ingrown-
               toenail-clinical.txt), MSF Essential Drugs 2024 (ibuprofen oral
               monograph), ARZOL Silver Nitrate Applicators (silver nitrate 75% /
               potassium nitrate 25%) DailyMed label, Indications and Application
               (SetID 23b83457-8cbc-26f1-e054-00144ff8d46c), Ingrown Toenails -
               disease-level clinical article (ingrown-toenail-full.txt)  (2026-08)

IS IT THIS? - reference only, to read alongside your own examination
  SYMPTOMS - what the patient reports (3)
    - Pain along the side of the nail worsens with footwear, walking or direct pressure
    - A history of improper nail trimming, recent trauma, repetitive sport activity or tight shoes
      is common
    - Pus discharge or a bad smell signal secondary infection in advanced cases  [pus]
  SIGNS - what you find (3)
    - Tenderness along the nail border with the nail plate visibly cutting into the surrounding soft
      tissue is the key exam finding
    - Granulation tissue and thickening of the nail fold with wound drainage mark more advanced
      disease  [wound discharge]
    - Staging runs from mild redness and swelling without pus, to inflammation with drainage, to
      chronic granulation tissue with fold thickening  [redness]
  TESTS (3)
    - Diagnosis is usually made clinically; culture or an x-ray is reserved for suspected deeper
      soft-tissue or bone infection
    - An x-ray can rule out an underlying bony growth beneath or beside the nail when its shape
      looks abnormal
    - MRI is reserved for cases where an x-ray suggests bone changes consistent with underlying bone
      infection
  IF NOT THIS - what else fits (3)
    - Ski-jump hallux, subungual exostosis and osteochondroma are structural mimics to consider
    - A subungual bone tumour or old trauma with hypertrophic remodeling can be confirmed when an
      x-ray shows bony proliferation beneath the nail
    - Locally aggressive mimics to keep in mind include subungual melanoma, its amelanotic form, and
      subungual squamous cell carcinoma
  Source  StatPearls "Ingrown Toenails" - disease-level clinical article
  Status  traced to the source above

Rx: Main treatment  |  Chemical cautery of hypergranulation tissue - a procedure, not a prescription

MAIN TREATMENT - choose one, plus any add-on marked below
1. CONSERVATIVE NAIL MANAGEMENT AND WARM SOAK             [1st line]
   Adult    Soak foot in warm water for 15-20 minutes 2-3 times daily; insert tiny cotton wick under
            corner of nail edge to elevate it above skin fold x 1-2 weeks
   Peds     Soak foot in warm water 15-20 min 2-3 times daily; ensure shoes have adequate toe room
   Source   No labelled dose - a procedure, not a medicine
   Why      Mechanical elevation and proper trimming address the root cause; antibiotics are
            unnecessary in the absence of surrounding cellulitis or purulence
   Caution  Cut toenails straight across, never curved into corners.
            Avoid tight-fitting footwear or high heels.
            Refer to minor surgery or podiatry if conservative care fails after 2 weeks or if severe
            granulation tissue develops.

2. REFERRAL & SAFETY-NETTING (NO DRUG THERAPY)            [1st line]
   Adult    
   Source   Ingrown Toenails - disease-level clinical article (ingrown-toenail-clinical.txt)
   Why      Carries the referral criteria and warning signs for this condition, which apply
            whichever treatment is chosen.
   Caution  RED FLAG - Recurrent or severe ingrown toenail needs referral for surgical matricectomy
            or phenolisation, which outperforms conservative and antibiotic management for
            preventing recurrence.
            RED FLAG - Diabetic or immunosuppressed patients should receive antibiotics even for
            minor infection - a lower threshold than the usual purulence or spreading-erythema
            trigger.

3. AMOXICILLIN + CLAVULANIC ACID                          [2nd line]
   Adult    625 mg (500/125) three times daily for secondary skin fold infection with purulence or
            spreading erythema x 7 days
   Peds     25-45 mg/kg/day  [child max 1750 mg]
            (25-45 mg/kg/day (amoxicillin component) divided twice daily for 7
            days)
            3kg -> 75-135 mg/day                     4kg -> 100-180 mg/day
            5kg -> 125-225 mg/day                    6kg -> 150-270 mg/day
            7kg -> 175-315 mg/day                    8kg -> 200-360 mg/day
            9kg -> 225-405 mg/day                    10kg -> 250-450 mg/day
            11kg -> 275-495 mg/day                   12kg -> 300-540 mg/day
            13kg -> 325-585 mg/day                   14kg -> 350-630 mg/day
            15kg -> 375-675 mg/day                   16kg -> 400-720 mg/day
            17kg -> 425-765 mg/day                   18kg -> 450-810 mg/day
            19kg -> 475-855 mg/day                   20kg -> 500-900 mg/day
            21kg -> 525-945 mg/day                   22kg -> 550-990 mg/day
            23kg -> 575-1035 mg/day                  24kg -> 600-1080 mg/day
            25kg -> 625-1125 mg/day                  26kg -> 650-1170 mg/day
            27kg -> 675-1215 mg/day                  28kg -> 700-1260 mg/day
            29kg -> 725-1305 mg/day                  30kg -> 750-1350 mg/day
            31kg -> 775-1395 mg/day                  32kg -> 800-1440 mg/day
            33kg -> 825-1485 mg/day                  34kg -> 850-1530 mg/day
            35kg -> 875-1575 mg/day                  36kg -> 900-1620 mg/day
            37kg -> 925-1665 mg/day                  38kg -> 950-1710 mg/day
            39kg -> 975-1750 mg/day (upper capped)   40kg -> 1000-1750 mg/day (upper capped)
            41kg -> 1025-1750 mg/day (upper capped)  42kg -> 1050-1750 mg/day (upper capped)
            43kg -> 1075-1750 mg/day (upper capped)  44kg -> 1100-1750 mg/day (upper capped)
            45kg -> 1125-1750 mg/day (upper capped)  46kg -> 1150-1750 mg/day (upper capped)
            47kg -> 1175-1750 mg/day (upper capped)  48kg -> 1200-1750 mg/day (upper capped)
            49kg -> 1225-1750 mg/day (upper capped)  50kg -> 1250-1750 mg/day (upper capped)
   Source   Egyptian National Drug Formulary - Antimicrobial 2023 (amoxicillin and clavulanate
            monograph)
   Why      Co-amoxiclav covers the mixed skin and nail-fold flora usual in Egyptian primary care;
            flucloxacillin 500 mg QDS is an equally acceptable first choice where the infection is
            clearly staphylococcal.
   Caution  Antibiotics alone will not cure ingrown toenail without removing mechanical pressure.
            Contraindicated in severe penicillin allergy.
            Check for underlying diabetes mellitus or peripheral arterial disease in elderly
            patients.
   Egypt    AUJED 625 MG 12 F.C. TAB.        SIGMA TEC > J...    19.20 EGP (1.60/unit)
            E-MOXCLAV 625MG 10 TAB.          EIPICO              30.00 EGP (3.00/unit)
            DEXICLAVE 625 MG 12 F.C. TABS.   RAMEDA > NOVE...    37.50 EGP (3.12/unit)
            MAGNABIOTIC 625MG 8 TAB.         SEDICO              37.00 EGP (4.62/unit)
            CLAVIMOX 625 MG 12 F.C.TABS.     PHARCO             107.00 EGP (8.92/unit)
            CURAM 625MG 12 F.C.TAB.          SANDOZ > NOVA...   108.00 EGP (9.00/unit)
            AUGMENTIN 625 MG 10 F.C.TABS.    MUP > SMITHKL...   117.00 EGP (11.70/unit)
            CLAVOCILLIN 625 MG 10 DISPERSIBLE TABS. RAMEDA > ORGANOPHARMA                  31.50 EGP
            LARYNCLAVE 125/31 PD. FOR ORAL SUSP. 70ML MISR > AL ROWAD PHARMACEUTICAL...     8.00 EGP
                -> ? strength differs, ? different route - not oral solid
            MEGACLAVOX 156MG/5ML PD. FOR SUSP. 60 ML CID                                    8.00 EGP
                -> ? strength differs, ? different route - not oral solid

4. IBUPROFEN                                              [add-on - not a substitute]
   Adult    400 mg three times daily after food PRN for pain and localized swelling x 3-5 days PRN
   Peds     5-10 mg/kg/dose  [child max 400 mg]
            (5-10 mg/kg/dose three times daily after food PRN. Child over 3
            months: 5 to 10 mg/kg 3 to 4 times daily, maximum 30 mg/kg daily.
            The suspension's own label caps pain-and-fever use lower still, at
            20 mg/kg/day. Never exceed 400 mg in a single dose.)
            3kg -> 15-30 mg/dose                    4kg -> 20-40 mg/dose
            5kg -> 25-50 mg/dose                    6kg -> 30-60 mg/dose
            7kg -> 35-70 mg/dose                    8kg -> 40-80 mg/dose
            9kg -> 45-90 mg/dose                    10kg -> 50-100 mg/dose
            11kg -> 55-110 mg/dose                  12kg -> 60-120 mg/dose
            13kg -> 65-130 mg/dose                  14kg -> 70-140 mg/dose
            15kg -> 75-150 mg/dose                  16kg -> 80-160 mg/dose
            17kg -> 85-170 mg/dose                  18kg -> 90-180 mg/dose
            19kg -> 95-190 mg/dose                  20kg -> 100-200 mg/dose
            21kg -> 105-210 mg/dose                 22kg -> 110-220 mg/dose
            23kg -> 115-230 mg/dose                 24kg -> 120-240 mg/dose
            25kg -> 125-250 mg/dose                 26kg -> 130-260 mg/dose
            27kg -> 135-270 mg/dose                 28kg -> 140-280 mg/dose
            29kg -> 145-290 mg/dose                 30kg -> 150-300 mg/dose
            31kg -> 155-310 mg/dose                 32kg -> 160-320 mg/dose
            33kg -> 165-330 mg/dose                 34kg -> 170-340 mg/dose
            35kg -> 175-350 mg/dose                 36kg -> 180-360 mg/dose
            37kg -> 185-370 mg/dose                 38kg -> 190-380 mg/dose
            39kg -> 195-390 mg/dose                 40kg -> 200-400 mg/dose
            41kg -> 205-400 mg/dose (upper capped)  42kg -> 210-400 mg/dose (upper capped)
            43kg -> 215-400 mg/dose (upper capped)  44kg -> 220-400 mg/dose (upper capped)
            45kg -> 225-400 mg/dose (upper capped)  46kg -> 230-400 mg/dose (upper capped)
            47kg -> 235-400 mg/dose (upper capped)  48kg -> 240-400 mg/dose (upper capped)
            49kg -> 245-400 mg/dose (upper capped)  50kg -> 250-400 mg/dose (upper capped)
   Source   Ibuprofen 100 mg/5 ml SmPC section 4.2 (eMC product 4560) for the adult dose: "The
            recommended dose is 200 mg-400 mg (10-20 ml), up to three times a day as required... do
            not take more than 1200 mg (60 ml) in any 24 hour period". That label's paediatric
            section gives weight bands and a 20 mg/kg/day pain-and-fever ceiling but states no mg/kg
            per dose, so the paediatric 5 to 10 mg/kg per dose is from MSF Essential Drugs 2024
            (ibuprofen oral monograph): "Child over 3 months: 5 to 10 mg/kg 3 to 4 times daily (max.
            30 mg/kg daily)".
   Why      NSAID added to local nail care for pain and localised inflammation of an ingrown
            toenail; it treats the associated discomfort, not the anatomical problem itself, which
            may still need definitive nail-edge treatment.
   Caution  Take with or after food to minimize gastrointestinal irritation.
            Avoid in active peptic ulcer, severe renal impairment, or third trimester of pregnancy.
            Caution in asthmatic patients with aspirin sensitivity.
            The 400 mg per-dose ceiling comes from the reference literature, not from the suspension
            label - that label's largest paediatric single dose is 200 mg. Below about 40 kg the
            weight calculation binds first and the ceiling never comes into it.
   Egypt    DAJUANOFEN 400 MG 20 F.C. TABS.  COPAD PHARMA         5.00 EGP (0.25/unit)
            FLABU 400MG 10 F.C.TAB.          DELTA PHARMA         3.75 EGP (0.38/unit)
            NOVA-PROFEN 400MG 30 F.C. TABLETS SANOFI                           12.75 EGP (0.42/unit)
            IBUPROFEN 400 MG 10 TAB.         SEDICO               6.00 EGP (0.60/unit)
            MAFO 400 MG  30 F.C.TABS         EIPICO              42.00 EGP (1.40/unit)
            BRUFEN 400 MG 30 TABS.           KAHIRA > ABBO...    78.00 EGP (2.60/unit)
            PROFUSOL 400MG 20 S.G CAPS.      EUROPEAN EGYP...    31.00 EGP
            ANALGIPROF 400 MG 25 SACHETS     EVA PHARMA          37.50 EGP
            NOVA-PROFEN  100MG/5ML ORAL SUSP. 100ML SANOFI                                  2.25 EGP
                -> ? strength differs, ? different route - not oral solid
            BRUFEMOL-N SUSP. 60 ML           ARAB DRUG COM...     4.50 EGP
                -> ? strength differs, ? different route - not oral solid


CHEMICAL CAUTERY OF HYPERGRANULATION TISSUE - A PROCEDURE, NOT A PRESCRIPTION - give alongside
5. SILVER NITRATE                                         [add-on - not a substitute]
   Adult    Applied to the granulation tissue itself, and the label gives no schedule. What the
            label's APPLICATION section does say: the ARZOL applicator goes straight onto mucous
            membranes and other moist surfaces; on dry skin its tip is dipped in water immediately
            beforehand; and it is put carefully only on the area meant to be treated. It must NOT be
            used on the eyes. The applicator is silver nitrate 75% with potassium nitrate 25%.
            Neither the label nor the disease article states a number of applications or an
            interval, and none is invented here. - No duration is stated in either document. Apply
            once and review; the label's own warning about repeated use is in the cautions and is
            the limit that matters.
   Peds     No strength, frequency, number of applications or maximum is stated for a child in
            either document, so no paediatric figure is printed. The label's neonatal warning is in
            the cautions and applies to thin skin generally. An ingrown toenail in a child is
            usually managed conservatively or surgically.
   Source   ARZOL Silver Nitrate Applicators (silver nitrate 75% / potassium nitrate 25%) DailyMed
            label, Indications and Application (SetID 23b83457-8cbc-26f1-e054-00144ff8d46c)
   Why      The disease article names the drug and the tissue it is for: silver nitrate put on
            granulomatous tissue, to bring down hypergranulation and the heavy bleeding that comes
            with it. The product label's indications section names the same tissue - on skin it is
            put forward for cauterising wounds and indolent ulcers, and for taking off granulation
            tissue and warts. This is the same pairing already accepted on the umbilical-granuloma
            card and it is used here on the same basis. The card carried conservative nail care, an
            antibiotic and an analgesic, none of which touches the lump of granulation tissue that
            keeps the nail fold bleeding and weeping. Egypt registers no silver nitrate product at
            all, so no brand and no price can be shown - the applicators are clinic stock, not
            something the patient fills at a pharmacy.
   Caution  IT IS A CAUSTIC. Label verbatim: "Silver Nitrate is a caustic compound, the improper use
            of which may cause chemical burns. Silver Nitrate mixes with body fluids; this mixture
            is caustic and tissue damage may result if not removed quickly." Protect and dry the
            surrounding skin, and wipe away any run-off at once - the toe is wet with exudate, which
            is exactly how the burn spreads.
            REPEATED USE. Label verbatim: "Long continued applications to large areas may produce
            argyria, a slate-blue discoloration of the skin and mucous membranes." Granulation
            tissue that has not settled after two or three applications is a reason to refer for
            definitive nail surgery, not to cauterise again and again.
            It blackens what it touches. Label verbatim: "Silver nitrate blackens the tissues to
            which it is applied but this discoloration gradually disappears." Warn the patient, or
            they will think the toe has become gangrenous.
            NEVER USE IT ON THE EYES.
            It does not treat the ingrowing nail. The disease article's cautery sentence sits inside
            a list of non-surgical palliative measures; the definitive treatments on this card and
            in the article are nail care and surgery. Cautery removes the granulation tissue and
            leaves the cause.
            Infection is a separate question. The disease article gives antibiotics, by mouth or
            topically, where there is minor infection - cellulitis or an abscess alongside the nail
            - and where the patient carries a high-risk comorbidity such as diabetes or
            immunosuppression. A diabetic foot with a discharging nail fold is not a cautery
            problem.
            REGULATORY STATUS, STATED HONESTLY - this product is sold as an unapproved drug, and
            carries the FDA disclaimer that FDA has not established its safety or effectiveness. It
            is cited here only because it is the sole source found that describes how to apply the
            product; the indication itself comes from the disease article and the product's own
            indications section.
   Egypt    no Egyptian brand matched - prescribe by generic name

Prices are indicative (dataset snapshot 2026-06); verify with the pharmacy.
```

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