Hello,
I cannot confirm anything without examination but it can be sweat dermatitis or fungal infections.
Wash the effected area daily and then dry thoroughly by pat drying,not rubbing. The damp skin is an ideal site for fungi to multiply.Also wear cotton underwears and change them twice a day and do not share other people’s towels. Most cases respond to over-the-counter products, which contain any of several basic ingredients: miconazole, tolnaftate, terbinafine,ketaconazole and clotrimazole.You can consult a pharmacist and get any cream or lotion containing these ingredients. Some of them are Lamisil, Monistat derm, Mycelex, and Nizoral.
If the symptoms persist then it will be best to get it evaluated from a dermatologist.
Hope it helps.Take care and pls do keep me posted on how you are doing or if you have any additional queries.Warm regards.
If this is being caused by heat and being outside I would avoid using strides pads. For one those are designed from clearing up acne not rashes. The pads because of their purpose dry the skin and remove oils, harmful to complexion but good for healthy skin.
So your putting aloe on to sooth and alcohol and other chemicals which dry so its little wonder your skin is agitated. Try using hydrocortisone instead. this will help with the itching and will not dry out the skin.