DearCustomerbr /> From your description it does seem like thrush but if it has not responded to canesten the diagnosis needs to be confirmed. This can be done by * Microscopic examination of a potassium hydroxide (KOH) wet mount of tissue which is scraped from surface in the area of red patch. This can be done in outpatient of a dermatologist in a short time. * To allow specific fungal identification growth on Mycosel or Sabouraud agar plates is done for 3-6 weeks. Only when a diagnosis of a fungal infection is confirmed would further treatment for fungal infection should be continued.