Various reasons for recurrent or persistent fungal infection are incomplete treatment
resistance, co-existing dermatitis, diabetes and low immunity. Treatment
resistance can be overcome by applying a cream with a combination of antifungals (Clotrimazole 1%, Miconazole nitrate 2%, Tolnaftate 1% and Butenafine hydrochloride 1%). Get her blood sugar tested, fasting, 2 hours after food and if these are high then glycosylated hemoglobin to see overall sugar status in last 3 months.