If acne or rash has shown up in the area, take care of it as it can grow, get aggravated and cause irritation. Apply anti-inflammatory cream or zinc oxide on the affected areas. Try home remedies for acne and do not pick your acne as it worsens its condition. Do not rub over the rash, it can cause swelling and irritation. Follow a good skincare regimen and find suitable products according to your skin types. If the skin condition worsens, visit a dermatologist for expert help.