In a healthy body, mast cells (the “lookout” cells of the immune system) only release histamine when they detect a foreign invader, like pollen or venom. In CSU, these cells dump histamine into the ...

Your child's doctor can help, but one of the biggest clues is itchiness. Since your baby or toddler won't be able to tell you how they're feeling, you'll need to watch for scratching behavior. It's ...

Add Yahoo as a preferred source to see more of our stories on Google. Chickenpox is usually mild but can lead to serious complications for some children (Getty Images) (Petko Ninov via Getty Images) A ...

Rashes in kids are rarely a reason for concern. Treatments can help relieve the itch, and you can talk with a doctor to rule out any serious causes. Share on Pinterest Kwangmoozaa/Getty Images Skin ...

Hives usually aren’t a sign of a serious medical condition. But their sudden appearance may merit a trip to urgent care or the emergency room if they show up along with other symptoms. Hives are itchy ...

Many different types of rashes can affect children. A child can develop dermatitis or develop a rash due to a virus, bacteria, or fungus. Although many rashes clear up quickly with home care, some ...

Measles can leave children exposed to infections for years by erasing immune memory; learn how vaccination protects them long ...

Urticaria affects both children and adults, with chronic cases more common in women, and often presents in emergency or dermatology settings. Conditions like vasculitic urticaria, erythema multiforme, ...