Treatment of Eczema on the Feet

First-Line Treatment Approach

The British Medical Journal recommends applying topical corticosteroids twice daily to eczematous areas on the feet, selecting the lowest potency that achieves control 1, 2, 4, 3
Use very potent or potent corticosteroids only for limited periods, then step down to medium potency formulations 3, 5
Implement "steroid holidays" when possible—stop corticosteroids for short periods once symptoms improve to minimize side effects like skin atrophy 1, 2, 3
Liberal emollient application is essential: apply after bathing to create a lipid film that prevents water loss from the epidermis 1, 4, 3
Continue emollients even when eczema appears controlled, as this reduces flares and decreases the amount of topical corticosteroids needed 3

Keep feet dry and out of water whenever possible, as moisture in interdigital spaces promotes bacterial colonization 6
Use dispersible cream as a soap substitute instead of regular soap, which strips natural skin lipids 4, 7
Wear cotton socks rather than synthetic materials to reduce irritation 4
Avoid tight shoes that create friction and pressure 6
Pat feet dry after bathing rather than rubbing, paying special attention to interdigital spaces 6
Keep toenails trimmed straight across, avoiding cuticle trimming which increases infection risk 6

Sedating antihistamines help only through their sedative effects, not direct anti-pruritic action—use at nighttime during severe flares 1, 2, 8, 4, 3, 7
Non-sedating antihistamines have no value in eczema and should not be used 8, 3
Avoid daytime antihistamine use; reserve for nighttime to improve sleep disrupted by itching 1, 2, 8

Watch for signs of bacterial infection: increased crusting, weeping, pustules, or sudden worsening 1, 2, 4, 3
Start flucloxacillin as first-line antibiotic for S. aureus, the most common pathogen 1, 2, 8, 4, 3, 7
Use erythromycin if penicillin allergy or flucloxacillin resistance is present 1, 2, 8, 4, 5, 7
Use phenoxymethylpenicillin if β-hemolytic streptococci are isolated 1, 2, 8, 7
Continue topical corticosteroids during bacterial infection when appropriate systemic antibiotics are given concurrently 3

If you observe grouped vesicles, punched-out erosions, or sudden deterioration with fever, suspect eczema herpeticum—this is a medical emergency 2, 8, 4, 3
Initiate oral acyclovir immediately; use intravenous acyclovir in ill, feverish patients 1, 2, 8, 4, 3

Coal tar solution or ichthammol can be useful for lichenified foot eczema 2, 4, 7
These do not cause systemic side effects unless used extravagantly 2, 4
For steroid-sparing maintenance in chronic foot eczema, consider tacrolimus 0.1% ointment once daily after initial control is achieved 5

Transition to twice-weekly medium potency topical corticosteroid application to previously affected areas once control is achieved 5
Maintain daily emollient use indefinitely—this reduces flare rate by 60% and prolongs time to flare from 30 to 180 days 3
Combining moisturizers with topical anti-inflammatory treatment is more effective than anti-inflammatory treatment alone 3

Failure to respond to moderate potency topical corticosteroids after 4 weeks 3
Symptoms worsening despite appropriate treatment 3
Diagnostic uncertainty (distinguishing from tinea pedis, contact dermatitis, or psoriasis) 7
Need for systemic therapy or phototherapy 3
Suspected eczema herpeticum (refer emergently) 3

Do not undertreat due to steroid phobia—explain to patients that appropriate short-term use of potent steroids is safer than chronic undertreated inflammation 4, 3
Do not use topical corticosteroids continuously without breaks—implement regular "steroid holidays" 1, 2, 3
Do not use greasy occlusive creams for basic care on feet, as these facilitate folliculitis development 6
Do not manipulate or pick at affected skin, which increases infection risk 6
Avoid hot water and excessive bathing, which worsens dryness 5, 7