Hi, I can understand your concern for frequent feeling of hunger and itchy spots around the body. It is too early to make a exact diagnosis of your condition but I can make a possibility of Allergic dermatitis. In Allergic dermatitis there are eruptions along with moderate itching and in more aggravated cases there is appearance of more redness which persist for more than multiple of days. 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 medium potency steroid cream application such as mometasone or fluticasone cream. You can take antihistamine benadryl or loratadine by mouth. There is no correlation of hunger with your present problem so do not correlate these with each other. Take care.