Hi. My boyfriend has a red rash which has been progressively spreading and getting worse the past 2 weeks. At first we thought they were mosquito bites. They started off on his right tricep, and have spread up his arm to his shoulder, as well as his right side of his neck. Some are now appearing on his hands, buttock and ankle, and his left tricep. We saw a doctor who said it was shingles and gave him anti viral medication, but he has been taking these a week and the rash has continued spreading. We then saw another doctor who said he had no idea what it was and gave him scabies treatment and said to wait 10 days and see if it gets worse. The rash has continued to spread across his neck. He said it's very itchy, and every time the itch flares up he seems to get very cold. Can anyone please help?!
Photos of the rash: