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Cold urticaria
Learn more about the symptoms and treatment of this allergic skin reaction caused by cold that most often affects young adults.
Coronary artery disease
Learn about this serious heart condition in which the major blood vessels that supply your heart with blood become damaged or diseased.
Cyclic vomiting syndrome
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.
Egg allergy
Egg allergy can cause a serious reaction in children and adults. Here's how to recognize egg allergy symptoms, and what to do if a severe reaction occurs.
Food allergy vs. food intolerance: What's the difference?
Might you have to swear off milkshakes for good? Follow the symptom clues to find out whether you possibly have a food allergy or a food intolerance.
Herbal supplements and heart medicines may not mix
Some herbal supplements can have dangerous interactions with heart medications.
Herbs and supplements: Can they enhance fertility?
There's no good evidence that so-called fertility herbs and supplements actually improve fertility.
High blood pressure (hypertension)
Learn the symptoms and treatment of this condition — which raises your risk of heart attack and stroke — and the lifestyle changes that can lower the risk.
Insect bites and stings: First aid
How to administer first aid for insect bites or stings.
Long QT syndrome
Learn more about the causes and treatment of this heart rhythm condition that can potentially cause fast, chaotic heartbeats.
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