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.
Headaches in children aren't usually serious, and can often be managed with medications and healthy habits.
Having a low sperm count can make conceiving a child difficult, but not necessarily impossible. Learn about possible causes and treatment.
Male infertility often plays a role when couples have trouble conceiving. Find out what causes male infertility and available options for treatment.
Soy allergy is a common food allergy that generally begins in infancy and often is outgrown in childhood.