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Fungal skin infection (tinea)

Dermatophytosis (tinea) · Plísňová infekce kůže (tinea)

What it is

Dermatophytes live on keratin — athlete's foot, groin itch, ringworm of the body and scalp.

Symptoms & signs

  • Itchy scaly ring-shaped rash
  • cracked skin between toes
  • hair loss in scalp ringworm

🚩 Get help if…

  • see a doctor soon Cracked skin between the toes with spreading redness and heat
  • see a doctor soon Scalp patch that is boggy, swollen and oozes pus
  • see a doctor soon Rash spreading despite 2 weeks of antifungal cream
  • see a doctor soon Foot infection in someone with diabetes

Where it strikes

Medical treatment

  • Topical terbinafine or clotrimazole
  • oral terbinafine or griseofulvin for the scalp (weeks; rare liver injury)
  • treat footwear and household contacts

Natural & lifestyle

  • Keep feet dry
  • breathable footwear
  • antifungal powder
  • don't share towels
  • treat shoes

Emerging & experimental

  • New triazoles
  • resistant Trichophyton indotineae spreading from South Asia

Alternative, off-label & anecdotal

Approaches used outside the guidelines, with what their supporters report and what testing has found so far.

  • Tea-tree oil for athlete's foot — trials of 25–50% solutions show clearing mixed evidence
  • Vinegar soaks — anecdotal anecdotal / traditional

ICD codes