How to Treat Cat Ringworm (Dermatophytosis)
📝 Summary
Ringworm shows as ring-shaped, crusted, hairless patches that spread across the body if ignored. Treat it by clipping the fur, softening and lifting the crust, then spraying an antifungal — about a week clears it — and use an Elizabethan collar so the cat can't lick it. Support healing with a vitamin B supplement, sunlight (not harsh sun), and a thorough environmental clean, since the fungus spreads to people and surfaces.
1 Treatment Steps
Check: gauge the crusted area; if fur covers it, clip a ring of hair around the spot.
Clean: spraying onto a crust does nothing — first soften it with a thick layer of erythromycin ointment (or petroleum jelly).
De-crust: wash the softened crust off with saline (this may sting a little; hold the cat steady), then spray the bare skin.
Spray: use an antifungal skin spray suited to feline ringworm; keep it up about a week and the cat recovers. After applying, fit an Elizabethan collar so the cat can’t scratch or lick the spot and undo the treatment.
2 Aftercare
Coat care: occasional medicated shampoo reduces surface germs and helps skin issues.
Nutrition: low skin immunity lets fungi in, so add a B-complex vitamin during and after treatment to aid skin and coat repair and prevent relapse.
Sunlight: more sun kills some fungi and keeps the skin dry — but never bake the cat, or sunburn worsens things.
Cleaning: ringworm spores fall around the home and reinfect; isolate the cat and disinfect its bed, toys, and surroundings, then sun the washed items. The fungus can pass to people.
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