Thank you for your question.
Your description fits a severe fungal infection, but sometimes you can get additional bacterial infection if the skin is damaged.
This will need a long course of oral treatment plus changes in your clothing. You will need to make sure you wear loose cotton clothing as fungus thrives in dark, tight sweaty and warm places. Also a deficiency in Vitamins and minerals makes your skin easy to damage and infection is harder to clear. A significant problem can also be certain undiagnosed metabolic illnesses like
diabetes and insulin resistance.
You need to consult a doctor MD Skin and DVD who will do the necessary tests. The other genital problem can also be looked into at the same time.
hope this helps