# Bacterial Folliculitis

- Category: acute
- Review status: reviewed (every claim checked against a document named on this page)
- Sources: Egyptian National Drug Formulary - antimicrobial-2023.pdf, Flucloxacillin monograph (chapter PDF p361) · Winters RD, Mitchell M. Folliculitis. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan-. Bookshelf ID: NBK547754. PMID: 31613534. · Egyptian Drug Authority - National Guidance of Rational Antimicrobial Use in the Management of Skin and Soft Tissue Infection, EDREX:GU.CAP.Care.015 version 1, 11/2025 · Egyptian National Drug Formulary - Antimicrobial 2023, mupirocin monograph · Egyptian National Drug Formulary - Antimicrobial 2023, cephalexin monograph · Egyptian National Drug Formulary - Antimicrobial 2023 (sulfamethoxazole and trimethoprim monograph)
- Verified date: 2026-08

## Verified against

- Egyptian National Drug Formulary - antimicrobial-2023.pdf, Flucloxacillin monograph (chapter PDF p361)
- Egyptian Drug Authority - National Guidance of Rational Antimicrobial Use in the Management of Skin and Soft Tissue Infection, EDREX:GU.CAP.Care.015 version 1, 11/2025
- Egyptian National Drug Formulary - Antimicrobial 2023, mupirocin monograph
- Egyptian National Drug Formulary - Antimicrobial 2023, cephalexin monograph

## Treatment metadata

- Mupirocin — topical
- Flucloxacillin — oral.solid
- Cefalexin — 500 mg — oral.solid
- Sulphamethoxazole + Trimethoprim — oral.solid

## Complete treatment card

```text
BACTERIAL FOLLICULITIS
Sources: Egyptian National Drug Formulary - antimicrobial-2023.pdf, Flucloxacillin monograph
         (chapter PDF p361) · Winters RD, Mitchell M. Folliculitis. In: StatPearls [Internet].
         Treasure Island (FL): StatPearls Publishing; 2026 Jan-. Bookshelf ID: NBK547754. PMID:
         31613534. · Egyptian Drug Authority - National Guidance of Rational Antimicrobial Use in
         the Management of Skin and Soft Tissue Infection, EDREX:GU.CAP.Care.015 version 1, 11/2025
         · Egyptian National Drug Formulary - Antimicrobial 2023, mupirocin monograph · Egyptian
         National Drug Formulary - Antimicrobial 2023, cephalexin monograph · Egyptian National Drug
         Formulary - Antimicrobial 2023 (sulfamethoxazole and trimethoprim monograph)
Review status: REVIEWED against 2 sources listed above  (2026-08)

IS IT THIS? - reference only, to read alongside your own examination
  SYMPTOMS - what the patient reports (4)
    - Increased scratching from itching, often with heavy sweating  [itching · sweating]
    - History of topical steroid use or recent/long-term oral antibiotics
    - Recent hot tub or swimming pool exposure
    - HIV with a CD4 count under 250, or other immunosuppression, raises risk
  SIGNS - what you find (1)
    - Small pustules with surrounding perifollicular inflammation in hair-bearing skin  [pustules]
  TESTS (3)
    - Diagnosis is clinical; testing is generally not needed
    - KOH prep can show the hyphae and spores of Malassezia folliculitis
    - A skin biopsy is usually needed to confirm eosinophilic folliculitis
  IF NOT THIS - what else fits (5)
    - Papulopustular rosacea: facial redness and pustules rather than a hair-follicle infection
    - Folliculitis triggered by a medication rather than infection
    - Hidradenitis suppurativa: recurrent nodules and abscesses in skin folds
    - Pseudofolliculitis barbae from ingrown shaved hairs
    - Acne keloidalis nuchae, scarring bumps at the nape of the neck
  Source  StatPearls "Folliculitis" - disease-level clinical article
  Status  traced to the source above

Rx: Topical antibiotic - first line  |  Oral antibiotic - extensive or deeper disease  |  Oral
    antibiotic - gram-negative folliculitis

TOPICAL ANTIBIOTIC - FIRST LINE
1. MUPIROCIN                                              [1st line]
   Adult    Apply 2% ointment to the affected area three times daily x 7 to 14 days, with review at
            3 to 5 days if there is no response
   Peds     A small amount three times daily for 5 to 10 days, with review at 5 days if there is no
            clinical response (Egyptian National Drug Formulary, mupirocin monograph). A topical
            dose is not weight-based.
   Source   Egyptian Drug Authority - National Guidance of Rational Antimicrobial Use in the
            Management of Skin and Soft Tissue Infection, EDREX:GU.CAP.Care.015 version 1, 11/2025
            for the indication - verbatim, the folliculitis row of its treatment table:
            "Folliculitis: Topical antibiotics (e.g., mupirocin, retapamulin)." Dose from the same
            document's dosing appendix - verbatim: "Mupirocin: 2% ointment applied 3 times per day."
            Duration from Egyptian National Drug Formulary - Antimicrobial 2023, mupirocin monograph
            - verbatim: "Apply to affected area 2 to 3 times daily, typically for 7 to 14 days
            depending on severity and clinical response; if no response after 3 to 5 days, re-
            evaluate treatment."
   Why      The treatment Egypt's own national guidance gives for folliculitis, and the one the
            international article names first for disease extensive enough to treat at all. Most
            simple staphylococcal folliculitis settles on its own within a few days.
   Caution  Most simple folliculitis needs no antibiotic. The source expects a few pustules to
            resolve spontaneously within a few days, and reserves topical treatment for more
            extensive disease.
            A painful nodule with a central pustule is a boil, not folliculitis, and a coalesced
            mass draining from several follicles is a carbuncle. Both are drainage decisions before
            they are antibiotic ones.
            Re-evaluate rather than extend if there is no response after 3 to 5 days.
   Egypt    BACTROFORM 2% TOP. OINT. 15 GM   WESTERN PHARM...    35.00 EGP
            MUPIROCIN SAJA 2% TOP. OINT. 15 GM BIOPHARM EGYPT > SAJA PHARMA                35.00 EGP
            MUPIRAX 2% OINT. 10 GM           GLOBAL NAPI P...    48.00 EGP
            MUPIROCIN SAJA 2% TOP. OINT. 20 GM BIOPHARM EGYPT > SAJA PHARMA                83.00 EGP
            MUPIRAX 2% OINT. 30 GM           GLOBAL NAPI P...   118.00 EGP


ORAL ANTIBIOTIC - EXTENSIVE OR DEEPER DISEASE - choose one
2. FLUCLOXACILLIN                                         [2nd line]
   Adult    250 mg orally (or by intramuscular injection) four times daily; the dose may be doubled
            for a severe infection. - As directed (formulary gives no fixed course length for this
            dose; a short course, e.g. 5-7 days, is typical clinical practice for more extensive or
            recurrent disease).
   Peds     Age-banded rather than weight-based by mouth: 1 month to 1 year 62.5 to 125 mg, 2 to 9
            years 125 to 250 mg, 10 years and older 250 to 500 mg, all four times daily (Egyptian
            National Drug Formulary, flucloxacillin monograph, quoting BNFC for beta-lactamase-
            producing staphylococcal infection including impetigo and cellulitis). Cefalexin carries
            a weight-based dose if one is preferred.
   Source   Egyptian National Drug Formulary - antimicrobial-2023.pdf, Flucloxacillin monograph
            (chapter PDF p361)
   Why      Bacterial folliculitis is usually a staphylococcal skin/soft-tissue infection, matching
            flucloxacillin's formulary indication; an oral course is used for more extensive or
            recurrent disease beyond what a topical antibiotic would cover.
   Caution  No plain flucloxacillin is sold in Egypt. All 33 live products are combinations with
            amoxicillin or ampicillin, so the patient goes home with a second antibiotic as well -
            check the pack and account for it.
            Penicillin allergy is a contraindication - ask about prior reactions before prescribing.
            Spreading redness, fever, or a large fluctuant area suggests an abscess or cellulitis
            needing drainage or reassessment rather than oral antibiotics alone.
            Recurrent folliculitis in a diabetic or immunosuppressed patient needs closer follow-up
            and consideration of predisposing factors.
            Rare but serious cholestatic jaundice/hepatitis can occur, more often with longer
            courses and in older patients.
   Egypt    FLUMOCIN 250MG 12CAPS.           UP PHARMA            6.20 EGP (0.52/unit)
                -> ! also contains amoxicillin
            AMOFLUX 125/125MG 12 CAPS.       RAMEDA > DELT...     8.25 EGP (0.69/unit)
                -> ! also contains amoxicillin
            FLUCAMOX 250MG 12CAPS.           SEDICO               8.25 EGP (0.69/unit)
                -> ! also contains amoxicillin
            FLUMOCIN 500MG 8 CAPS.           UP PHARMA            6.00 EGP (0.75/unit)
                -> ! also contains amoxicillin
            CURAFLUX 125/125 MG 12 CAPS.     RAMEDA > PIONEER    12.50 EGP (1.04/unit)
                -> ! also contains amoxicillin
            AMOFLUX 250/250MG 16 CAPS.       RAMEDA > PIONEER    18.00 EGP (1.12/unit)
                -> ! also contains amoxicillin
            HI-FLUCIL 250/250MG 16 CAPS.     CID                 20.00 EGP (1.25/unit)
                -> ! also contains amoxicillin
            AMPIFLUX 500 MG 12 CAPS.         PHARCO              16.00 EGP (1.33/unit)
                -> ! also contains ampicillin

3. CEFALEXIN                                              [2nd line]
   Adult    500 mg orally every 6 hours - The formulary states no course length for skin infection -
            review at 5 to 7 days rather than repeating a prescription
   Peds     25-50 mg/kg/day  [child max 2000 mg]
            (25 to 50 mg/kg/day divided every 6 or 12 hours, maximum 2,000
            mg/day (Egyptian National Drug Formulary, cephalexin monograph,
            general dosing for mild to moderate infection).)
            3kg -> 75-150 mg/day                     4kg -> 100-200 mg/day
            5kg -> 125-250 mg/day                    6kg -> 150-300 mg/day
            7kg -> 175-350 mg/day                    8kg -> 200-400 mg/day
            9kg -> 225-450 mg/day                    10kg -> 250-500 mg/day
            11kg -> 275-550 mg/day                   12kg -> 300-600 mg/day
            13kg -> 325-650 mg/day                   14kg -> 350-700 mg/day
            15kg -> 375-750 mg/day                   16kg -> 400-800 mg/day
            17kg -> 425-850 mg/day                   18kg -> 450-900 mg/day
            19kg -> 475-950 mg/day                   20kg -> 500-1000 mg/day
            21kg -> 525-1050 mg/day                  22kg -> 550-1100 mg/day
            23kg -> 575-1150 mg/day                  24kg -> 600-1200 mg/day
            25kg -> 625-1250 mg/day                  26kg -> 650-1300 mg/day
            27kg -> 675-1350 mg/day                  28kg -> 700-1400 mg/day
            29kg -> 725-1450 mg/day                  30kg -> 750-1500 mg/day
            31kg -> 775-1550 mg/day                  32kg -> 800-1600 mg/day
            33kg -> 825-1650 mg/day                  34kg -> 850-1700 mg/day
            35kg -> 875-1750 mg/day                  36kg -> 900-1800 mg/day
            37kg -> 925-1850 mg/day                  38kg -> 950-1900 mg/day
            39kg -> 975-1950 mg/day                  40kg -> 1000-2000 mg/day
            41kg -> 1025-2000 mg/day (upper capped)  42kg -> 1050-2000 mg/day (upper capped)
            43kg -> 1075-2000 mg/day (upper capped)  44kg -> 1100-2000 mg/day (upper capped)
            45kg -> 1125-2000 mg/day (upper capped)  46kg -> 1150-2000 mg/day (upper capped)
            47kg -> 1175-2000 mg/day (upper capped)  48kg -> 1200-2000 mg/day (upper capped)
            49kg -> 1225-2000 mg/day (upper capped)  50kg -> 1250-2000 mg/day (upper capped)
   Choice   Alternatives, both oral antistaphylococcal cover for folliculitis that is extensive,
            deeper, or has not settled on the topical antibiotic. Cefalexin is put first for two
            reasons: the folliculitis source names it by name, and it can be bought plain in Egypt,
            where every flucloxacillin product on the market is a combination with amoxicillin or
            ampicillin. Cefalexin also carries the weight-based paediatric dose.
   Source   Folliculitis - StatPearls - NCBI Bookshelf (NBK547754) - disease-level clinical article
            (bacterial-folliculitis-full.txt) for the indication - verbatim: "Should these prove
            ineffective or should the patient present with deeper folliculitis such as furunculosis
            and carbunculosis or more extensive involvement of the skin, then oral antibiotics such
            as cephalexin and dicloxacillin are options." The article gives no dose. Dose from
            Egyptian National Drug Formulary - Antimicrobial 2023, cephalexin monograph - verbatim
            indication "Skin and skin structure infections: Treatment of skin and skin structure
            infections caused by S. aureus and/or S. pyogenes", and dosing: "Usual adult dosage
            range: Oral: 250 to 1,000 mg every 6 hours or 500 mg every 12 hours (maximum: 4 g/day)".
   Why      The oral step when a topical antibiotic is not enough or the infection has gone deeper.
            It is the source's first-named oral option and the one obtainable as a single medicine
            in Egypt.
   Caution  Four times a day. A missed dose matters more on a 6-hourly antibiotic than on a twice-
            daily one - say so when handing it over.
            Avoid after a severe or immediate reaction to a penicillin.
            Tablets and oral suspension are not bioequivalent and must not be swapped milligram for
            milligram - Egyptian National Drug Formulary, cephalexin monograph.
            Spreading redness, fever, or a fluctuant swelling is cellulitis or an abscess, and needs
            reassessment or drainage rather than a longer oral course.
   Egypt    CEFLODIX 500 MG 12 CAPS.         ARAB CAPS > P...     9.00 EGP (0.75/unit)
            CEPHALEXCID 500 MG 12 CAPS.      CID                 10.30 EGP (0.86/unit)
            CEPHOXIN 500MG 12 TAB.           PHARCO B            10.50 EGP (0.88/unit)
            CEPHALEXIN 500MG 10 CAPS.        ARAB DRUG COM...    10.10 EGP (1.01/unit)
            MEDICEFLEXIN 500 MG 20 CAPS.     T3A PHARMA > ...    25.25 EGP (1.26/unit)
            CEPHALEXIN 500MG 12 CAPS B.P.2007 SHIFA MEDICAL PRODUCTS > O...    27.00 EGP (2.25/unit)
            KEFLEX 500 MG 12 CAPS.           HIKMA PHARMA        58.00 EGP (4.83/unit)
            CEPOREX 500MG 12 TABS.           GLAXO SMITHKLINE    69.00 EGP (5.75/unit)
            AMTHROST 125MG/5ML SUSP. 60ML    SIGMA > SABAA        4.00 EGP
                -> ? strength differs, ? different route - not oral solid
            AMTHROST 250MG/5ML SUSP. 60ML    SIGMA > SABAA        4.50 EGP
                -> ? strength differs, ? different route - not oral solid


ORAL ANTIBIOTIC - GRAM-NEGATIVE FOLLICULITIS
4. SULPHAMETHOXAZOLE + TRIMETHOPRIM                       [2nd line]
   Adult    1 to 2 double-strength tablets every 12 to 24 hours
   Peds     6-12 mg/kg/day  [child max 320 mg]
            (From 2 months of age: 6 to 12 mg/kg a day of the trimethoprim
            component, split every 12 hours, up to 160 mg of trimethoprim per
            dose. Not for infants under 2 months.)
            3kg -> 18-36 mg/day                    4kg -> 24-48 mg/day
            5kg -> 30-60 mg/day                    6kg -> 36-72 mg/day
            7kg -> 42-84 mg/day                    8kg -> 48-96 mg/day
            9kg -> 54-108 mg/day                   10kg -> 60-120 mg/day
            11kg -> 66-132 mg/day                  12kg -> 72-144 mg/day
            13kg -> 78-156 mg/day                  14kg -> 84-168 mg/day
            15kg -> 90-180 mg/day                  16kg -> 96-192 mg/day
            17kg -> 102-204 mg/day                 18kg -> 108-216 mg/day
            19kg -> 114-228 mg/day                 20kg -> 120-240 mg/day
            21kg -> 126-252 mg/day                 22kg -> 132-264 mg/day
            23kg -> 138-276 mg/day                 24kg -> 144-288 mg/day
            25kg -> 150-300 mg/day                 26kg -> 156-312 mg/day
            27kg -> 162-320 mg/day (upper capped)  28kg -> 168-320 mg/day (upper capped)
            29kg -> 174-320 mg/day (upper capped)  30kg -> 180-320 mg/day (upper capped)
            31kg -> 186-320 mg/day (upper capped)  32kg -> 192-320 mg/day (upper capped)
            33kg -> 198-320 mg/day (upper capped)  34kg -> 204-320 mg/day (upper capped)
            35kg -> 210-320 mg/day (upper capped)  36kg -> 216-320 mg/day (upper capped)
            37kg -> 222-320 mg/day (upper capped)  38kg -> 228-320 mg/day (upper capped)
            39kg -> 234-320 mg/day (upper capped)  40kg -> 240-320 mg/day (upper capped)
            41kg -> 246-320 mg/day (upper capped)  42kg -> 252-320 mg/day (upper capped)
            43kg -> 258-320 mg/day (upper capped)  44kg -> 264-320 mg/day (upper capped)
            45kg -> 270-320 mg/day (upper capped)  46kg -> 276-320 mg/day (upper capped)
            47kg -> 282-320 mg/day (upper capped)  48kg -> 288-320 mg/day (upper capped)
            49kg -> 294-320 mg/day (upper capped)  50kg -> 300-320 mg/day (upper capped)
   Source   Egyptian National Drug Formulary - Antimicrobial 2023 (sulfamethoxazole and trimethoprim
            monograph) - verbatim: "General dosing guidelines: Oral: 1 to 2 double-strength tablets
            every 12 to 24 hours."
   Why      Gram-negative folliculitis, the form that follows a long course of antibiotics for acne,
            does not respond to the anti-staphylococcal agents listed above. Co-trimoxazole is the
            article's first-line oral choice for it and is cheap and everywhere in Egypt.
   Caution  Do not use it in sulfonamide or trimethoprim allergy, in megaloblastic anaemia from
            folate deficiency, in marked liver damage, in severe kidney disease that cannot be
            monitored, or in an infant under 2 months.
            For gram-negative folliculitis, the kind that follows prolonged antibiotic treatment -
            not for ordinary staphylococcal folliculitis, which mupirocin, flucloxacillin and
            cefalexin already cover.
            The formulary does not list skin infection among co-trimoxazole's indications; the
            indication here rests on the disease article.
   Egypt    CO-TRIMOXAZOLE 20 TABS.          MUP                  5.00 EGP (0.25/unit)
            COTRIL 400/80MG 20 TAB.          EL NASR             38.00 EGP (1.90/unit)
            SEPTAZOLE FORTE 800/160MG 20 TABS. ALEXANDRIA                      56.00 EGP (2.80/unit)
            SEPTRIN D.S 10 TABS.             GLAXO SMITHKL...    28.00 EGP (2.80/unit)
            SEPTAZOLE 400/80MG 20*10 TABS.   ALEXANDRIA         340.00 EGP (34.00/unit)
            SUTRIM 400/80MG 20*10 TAB.       MEMPHIS            340.00 EGP (34.00/unit)
            CO-TRIMOXAZOLE 200/40MG SUSP. 120ML MUP                                         6.00 EGP
                -> ? strength differs, ? different route - not oral solid
            SUTRIM 200/40MG SUSP. 100ML      MEMPHIS             18.50 EGP
                -> ? strength differs, ? different route - not oral solid

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

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