Hi welcome to Health care magic forum. As you have correctly diagnised it is a fungal infection
called ring worm
, and it needs treatment with systemic anti fungals, topical medicines and vitamin suppliments to avoid relapse as fungal infections have a high tendency to recurence. So i advise you to consult a dermatologist
to have diagnosis and treatment.
Besides i advise you some diet recomendations as avoid taking brinjal, fish, and other sea foods.
Take more of green leafy vegetables, pulses, sprouts, milk, egg, meat, fruits, juices, and dry fruits to develope resistance againest such infections. Wishing for a quick recovery and thanks for calling.