Consumer health basics
Allergy symptoms can range from mild to severe, even life-threatening. Most allergies can't be cured, but treatments can help.
Learn more about symptoms, treatment, self-care tips and prevention of bee stings, which in some people cause severe allergic reaction.
Cyclic vomiting syndrome often starts in childhood and is marked by spells of vomiting several times an hour over a period of hours or days.
Find out more about headaches in children, which may or may not be serious. They can often be managed with medications and healthy habits.
Learn more about the causes and treatment of this heart rhythm condition that can cause fast, chaotic heartbeats.
Find out about painful migraines that can last hours to days. Also can cause nausea and vomiting and reacting to light and sound.
It's possible to be allergic to some types of shellfish without reacting to other types. Learn more about this common food allergy.
Learn more about this congenital heart defect that makes it difficult for the heart to pump the right amount of blood to the lungs and the body.