Thanks for writing to us.
It seems probably you are having candidal intertrigo
. It is characterised by wet macerated red rash with studded pustules( pus pockets). It is common in moist, warm hairy areas like groins, axilla
Treatment requires oral and topical antifungal
. Try to keep the area dry and well ventilated. Wear loose cotton clothes. Dust the area with antifungal powder after bathing. If lesions are too itchy take tablet cetirizine
Hope that answers your query.