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Allergy shots
Allergy shots offer long-term relief from allergy symptoms. The treatments take 3 to 5 years to complete.
Long QT syndrome
Learn more about the causes and treatment of this heart rhythm disorder that can cause fast, chaotic heartbeats.
Cold urticaria
Learn more about the symptoms and treatment of this allergic skin reaction caused by cold that most often affects young adults.
Pulmonary embolism
A blood clot blocks and stops blood flow to an artery in the lung. Often the clot starts in a leg and travels to the lung.
Allergies
Allergy symptoms can range from mild to severe, even life-threatening. Find out what treatments and prevention tips can help.
Cardiogenic shock
Most often the result of a severe heart attack, this rare condition can be deadly if not treated immediately.
Pulmonary hypertension
This lung condition makes the heart work harder and become weak. Changes in genes and some medicines and diseases can cause it. Know if you're at risk.
Medication overuse headaches
When medicines that ease headache pain are used too often, they can start causing headaches. Learn about prevention and treatment.
Chronic daily headaches
If you have a headache most days, you might have one of the most disabling headache conditions, chronic daily headaches. Aggressive treatment and long-term management might help.
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.
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