My son & partner started turning blood red on his forehead, cheeks and nose. On his hands where he'd been running the walk behind his hands looked red and puffy. They looked like an inflated rubber glove. They stung, but not his face. Our WB is a Toro T-bar so his hands were flat out in the sun. He wondered if it may have been from the anitbiotic he was taking. He looked on the bottle and sure enough it warned to stay out of the sun! Has anyone experienced this? How long will it last? Can anything be done to relieve it? Benadryl or anything? He tried working with golves on yesterday. But as soon as it warmed up he had to get back into the air conditioning. What can you tell me?