Allergy Medicines

What are allergy medicines?

Allergy symptoms start when you react to something in the home or environment that your body sees as foreign. Symptoms may include sneezing, a stuffy or runny nose, watery eyes, or skin reactions. Allergy symptoms can go away in a few minutes without treatment, or they may last for several days.

There are many nonprescription products that may help relieve some of the symptoms of an allergy. Many nonprescription allergy medicines contain more than 1 ingredient to treat more than 1 symptom. Read the labels and buy products that have only the ingredients that you need. If you are not sure which medicine is best, ask your pharmacist.

How do they work?

• Decongestants reduce swelling in your nose and sinuses. They may also lessen the amount of mucus made by your nose. If you use decongestants more often than directed, your stuffy nose may get worse.
• Antihistamines block the effect of histamine. Histamine is a chemical your body makes when you have an allergic reaction. Antihistamines are most often used to treat itchy or watery eyes or a stuffy or runny nose caused by an allergy. Antihistamines probably won't help a stuffy or runny nose caused by a cold because they make mucus thick and dry.

What else do I need to know about this medicine?

• Talk to your healthcare provider if your symptoms start suddenly or you have severe symptoms. This may mean you have something more serious than an allergy.
• Follow the directions that come with your medicine, including information about food or alcohol. Make sure you know how and when to take your medicine. Do not take more or less than you are supposed to take.
• Try to get all of your medicine at the same place. Your pharmacist can help make sure that all of your medicines are safe to take together.
• Keep a list of your medicines with you. List all of the prescription medicines, nonprescription medicines, supplements, natural remedies, and vitamins that you take. Tell all healthcare providers who treat you about all of the products you are taking.
• Many medicines have side effects. A side effect is a symptom or problem that is caused by the medicine. Ask your healthcare provider or pharmacist what side effects the medicine may cause and what you should do if you have side effects.

If you have any questions, ask your healthcare provider or pharmacist for more information. Be sure to keep all appointments for provider visits or tests.