A sun rash is an immune system reaction to sunlight exposure that causes itchy bumps, raised patches, or blisters on your ...

Anyone with a severe sunburn can experience hell’s itch. Find out about sun rashes. No one can predict whether a sunburn will cause hell’s itch. However, people can avoid developing hell’s ...

These bumps may not be itchy, but they can be painful and typically appear on the upper arms ... ve spent time in the sun. There are a few other nuances, too. "Heat rash does not involve nails ...