You may be suffering from tinea cruris which is fungal infection of the inner thighs and genital area. It can spread on face also like in your case. It can be treated by taking four to six weeks of anti fungal treatment which includes tablets along with creams. Do not use soap over that area. Mistreatment with over the counter Steroid containing creams like panderm, quadriderm, dermi 5, candid b etc lead to repeated case of recurrence and also side effects due to application. Do not use steroid containing combination creams. Please contact me using online consult option with photos for detailed prescription. Please start treatment soon or else it will spread further and also to others in the house.