My mother has small red dots that itch on her arms, legs, chest, and back (both sides of her body). She has been nursing a wound which has almost healed but has taken a long time to heal due to edema in her left ankle area. She has high blood pressure which is treated with Losartan and ulcerative colitis which is treated with balsalizide and omeprazole. Does she have cellulitis, hives, allergies, shingles? The little red dots eventually form a little crust/scab. Any ideas?