The treatment for fungal infection is simple. You have to take anti fungal tablets and creams for 4 to 6 weeks following which it resolves. Do not apply soap on that area and do not self treat with over the counter steroid creams. Mistreatment with steroid creams and treatment with cheaper generic brands  is the most common reason for recurrent disease. Also other household members if infected should be treated  together. Kindly send photos using online consult option for accurate diagnosis and treatment.