Hi, I can understand your concern for body itching with lumps. There can be two possibilities 1. Scabies : Mainly night itching with small papules on web spaces and around umbilicus with genital area. 2. Allergic contact dermatitis: In this condition there are eruptions along with moderate itching and in more aggravated cases there is appearance of more redness. In this condition a thorough history of contact allergens are to be taken and accordingly a specific diagnostic technique known as patch test is to be undertaken. Check for the itching in other family members.The only precaution you must follow is not to touch, pinch pop or squeeze any of them other wise it can get infected and can cause complications. You can apply Permethrin 5% cream and apply medium potency steroid cream application such as mometasone or fluticasone cream. You can take antihistamine benadryl or loratadine by mouth. Take care.