There can be many causes of such itchy bumps. These include moisture(due to sweating or frequent washing), the abrasion caused by clothing, the pressure of sitting, chemical irritants like laundry soaps, colognes and scented toilet paper, infections like STD’s and pinworms,anal abrasions and fissures and skin problems such as psoriasis, seborrhea and eczema. Sometimes hemorrhoids will start off as red rash and anal itching.
Try keeping the area sweat free and wear cotton clothes. A protective ointment that contains zinc oxide also may help. If your symptoms are worse at night, please take an antihistamine like Benadryl to reduce itching until topical treatments take effect. If the symptoms are severe then please consult a dermatologist.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
thank you fior your imput i tired hydrocorotzine ointment and keep it dry with tissues its getting better