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Antihistamines

BMJ Group Medical Reference

We don't know if these medicines can help. Antihistamines are often used to treat allergic conditions such as hay fever. You can buy some antihistamines at a pharmacy, but you'll need a prescription from your doctor for others. They come as tablets and syrups. Some examples are acrivastine (brand name Benadryl Allergy Relief), cetirizine (Zirtek), and chlorphenamine (Piriton).

Some antihistamines can make you sleepy, so you need to be careful how you use them, especially if you operate machinery or drive a car.

Glossary

allergic reaction

You have an allergic reaction when your immune system overreacts to a substance that is normally harmless. You can be allergic to particles in the air you are breathing, like pollen (which causes hay fever) or to chemicals on your skin, like detergents (which can cause a rash). People can also have an allergic reaction to drugs, like penicillin.

hay fever

You get hay fever when your immune system reacts too strongly to pollen or mould. Your doctor may call it seasonal allergic rhinitis. The most common symptoms are sneezing, a runny or blocked nose, and red, itchy eyes. You may also cough or wheeze.

For more terms related to Sinusitis

Citations

For references related to Sinusitis click here.
Last Updated: March 13, 2013
This information does not replace medical advice.  If you are concerned you might have a medical problem please ask your Boots pharmacy team in your local Boots store, or see your doctor.

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