I am hoping your sister has not been given steroids as that can cause weight gain and make the infection spread, apart from a variety of other side effects. She will need a course of antifungal tablets. Sometimes fungi become resistant to regular anti fungals and higher antifungal will be needed. Also in resistant cases it can take 3 to 6 months to cure the infection. She might also need to get her blood
sugar levels checked as repeated infections are more common in diabetics. Please visit a qualified dermatologist whom you have faith in regularly till the infection clears up. Warm regards. Dr. Rajdeep Mysore. Chirag Hospital Bangalore