Black spots on the legs that do not improve with treatment can be due to pigmentation caused by irritation, allergy, or ongoing skin inflammation. Keep the skin moisturised, avoid scratching, protect it from sun exposure, and use gentle skincare to prevent further darkening. Wear loose clothing, maintain hygiene, and avoid using strong creams without guidance. Since it is not improving with the current treatment, consult a doctor to review the cause and guide a more suitable therapy.

Ringworm with persistent itching is usually caused by a fungal infection or by improper treatment that allows it to spread. Keep the area clean and dry, wear loose cotton clothes, avoid sweating and scratching, and do not share towels or clothes to prevent the spread. Avoid using steroid creams as they can worsen the infection and delay healing. Since it is not improving, consult a doctor to confirm the diagnosis and start appropriate antifungal treatment for a complete cure.