Katie Marks-Cogan, M.D.

Avoid stress and keep your child safe by discussing these topics with their M.D.

Forget the hassle of Googling aimlessly. We’ve compiled a list of top sites to bookmark.

Learn how these antihistamines work to treat allergies and whether it’s ever safe to combine them—plus when to consider prescription therapies instead.

While finger-prick and current blood testing cannot, a new blood test in the works may ID a mistaken immune response to milk, the most-common driver of rogue white blood cells attacking the esophagus.

It’s unlikely but possible, experts say. A more realistic hope? Aiming for long-term remission with the right treatment approach.

They sure can—and do. Our experts explain why, naming common foods that can trigger a rogue immune response out of the blue, even if you’ve been eating them forever.

For Kimberly Phan, the sport has taught her about both resilience and listening to your body.

Hitting the drive-thru for a quick bite before practice with a food-allergic kid can be a minefield. Here’s how not to freak out.

My son with nut allergies knows eating one bite of the wrong thing could put him in danger. So how do we make sure he isn’t terrified of food?

When your kid has allergies, you’re on high alert for symptoms of a reaction—but it can be confusing.

There comes a time when your child is old enough to be responsible for their own autoinjector in an emergency. Here's how to set them up for success.

Take this self-assessment quiz to size up the extent of your chronic spontaneous urticaria.