Hello,
You are suffering from rashes on the waist due to hiking and not being able to take proper care of your hygiene. Now you are suffering from rashes and bumps. Do not touch, pick or scratch , it will cause spread and infection. This rash is indicative of yeast infection but it may also be due to
contact dermatitis. Take oral antihistamine like cetirizine or
fexofenadine. Try an identify any triggers that could have caused the symptoms and stay away from it.
Avoid wearing belts, jewelry or any metal. Take care of your hygiene and keep yourself dry, clean and cool. Apply ointment
hydrocortisone in the area affected. Get clinically examined if it is jock itch, you will need to take a course of anti fungal and apply ointment
clotrimazole. If it is resistant you will be prescribed to take oral
corticosteroids. Stay away from addictions if any. Use antibacterial soap for bathing. Do not use perfumed beauty products. Avoid sharing your toiletries with anyone.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Nupur K., General & Family Physician