What should you know about thrush skin rash?

Skin thrush commonly affects folds such as the armpits, groin, under the breasts, or beneath the abdomen. The affected skin may be bright red, moist, tender, cracked, or burning, and small nearby spots may appear. Candida can flourish when skin stays damp or rubs together. Similar symptoms may come from intertrigo, heat rash, contact dermatitis, psoriasis, ringworm, scabies, or atopic dermatitis, so appearance alone cannot confirm the cause.

Wash gently, pat dry rather than rubbing, and use breathable clothing. Change sweaty clothes and avoid perfumed washes on the area. Ask a pharmacist or clinician about an antifungal treatment suitable for the site, and use it exactly as directed. Do not share towels. If episodes repeat, discuss recent antibiotics, blood-sugar problems, skin friction, or medicines that affect immunity.

Seek medical advice if the rash is painful, spreading, recurrent, oozing, or failing to improve with suitable treatment. Get urgent help for fever, pus, rapidly increasing redness, severe swelling, or a rash affecting the eyes, mouth, or genitals. Seek prompt advice for an infant or for someone with diabetes or reduced immunity.

What features suggest Candida rather than eczema or ringworm? Should the skin be tested? Which product and duration fit this location? How can I reduce recurrence?