Hi, I have gone through your medical history carefully and understood your concerns. The burning itching sensation on your lower pelvic stomach area with bumps sometimes is suggestive of a possible allergic reaction (to perhaps insect bites) or fungal infection of pelvis (jock itch). A photo of the affected area will help determine the right diagnosis. Apart keeping good hygiene locally, and applying jock itch medicine, lotions and medicine for itching; you need to take oral anti-itching meds (anti-histaminic). If it won t improve at the end of the week, should consult with dermatologist as you might need prescription meds. Wish fast recovery.