Prevention of allergies in children is a murky science. Some parents may add prebiotic supplements to baby formula in the hopes that the prebiotics could reduce allergy risk.

People with asthma and allergies often have to take medication to stop their sneezing, itchy eyes and running noses. There’s new evidence to suggest an allergy treatment used in Europe could help prevent these reactions before they start.

Researchers already knew that milk allergy was common among American children. But until recently, they weren’t sure how it compared to other food allergies.

Traveling with peanut and tree nut allergies can be challenging.  Airplane flights can be especially difficult since nuts are so often passed out as snacks. But allergies shouldn’t keep you grounded.

Children born outside of the United States have lower allergy rates than US-born children. But now researchers have found that foreign-born children's allergy risk changes the longer they live in the US.

Even before children show signs of allergies, their body may already be reacting to allergens in the air or their food. Now, researchers have found that race may play a role in children's sensitivity to developing allergies.

For people with environmental allergies, the air they breathe can trigger reactions – even during sleep. Hypoallergenic mattress and pillow covers work for some but not all.

People with allergies often have to take antihistamines to calm their allergy symptoms. For some people, antihistamines can cause unwanted side effects. Now these patients might have another treatment option.

Following a rising trend, almost a third of all births in the United States are through caesarian section, or C-section. In many cases, these C-sections are medically necessary.

So you think you're allergic to something you inhaled, touched or ate. But without any obvious symptoms, it's hard to tell exactly what you're allergic to. And experts say allergy testing may not always be useful.