y husband has a raised rash on his forearms, hands, legs, feet, ankles and back of neck. That itches. I was thinking its hand, foot and mouth disease. He 2 nights ago was in a outside hot tub. y 8 year old granddaughter who is staying with us also developed a light rash on forearms and hands and back, and slightly on feet and complains of itching. But, she was not in a hot tub. could this be the virus? Husbands is much worse.