Photos are not clear. Are they increasing in size like rings ? Do they itch a lot when you sweat ? Needs a detailed evaluation. Provide with clear photos so that accurate diagnosis can be made and treatment can be given to you accordingly

It's Fungus  infection....common around skin folds like thighs and genitals.. avoid sweating, sharing clothes,towels and soap.. specific medicine required depends on the severity.. for detailed prescription do direct online consultation

Hi.. This is tinea infection. You need to rub onabet cream twice daily followed by Canzorb powder. If this does not solve your issue then you need more stronger treatments for final infection. Also consider reducing the fat in inner thighs by getting a lipobodysculpting done. This is a procedure where localised collection of fat is removed under local anaesthesia. Very safe and will solve your issue permanently. You can contact Juvenis Clinic in Bombay to have a formal video consultation with me.

It may be fungal infection or frictional dermatitis. Kindly consult for proper history and management.