Without examination, confirmation of a diagnosis is tough but it can bei intertrigo, sweat dermatitis,heat rash
or fungal infection.
An intertrigo is an inflammation (rash) of the body folds.It most commonly occurs due to bacterial,viral or fungal infection. An intertrigo usually appears red and raw-looking, and may also itch, ooze, and be sore.
Pls keep the area clean and apply some topical antiseptics.