It seems that the lesions you have may candidal intertrigo
with secondary bacterial infection in inframammory areas and groin areas. I hope you may be health concious, so you might have ruled out immunocompromised conditions like HIV
and also may be tested to rule out DM. I recommend to consult nearby dermatologist
. After proper examination and confirming the diagnosis,he might give proper medicines. He might prescribe strong antibiotics with antifungal and anti inflammatory drugs. And locally,antibiotic cream may be prescribed. You may be alright after taking proper drugs. I hope you got my answer.
Dr. Ilyas Patel MD