How To Treat Cystitis

Antihistamines

Antihistamines are a type of medication that dampens the body's immune system response. When patients take an antihistamine, their body quits responding to histamines, a chemical the body produces when it encounters an infection or harmful microorganism. This means they keep the immune system from kicking into overdrive and causing swelling, inflammation, increased blood flow, and more sensitive nerves. Though these drugs are most commonly used to treat allergic reactions, they can also be used as a method of managing interstitial cystitis. An antihistamine can help with this condition by reducing the inflammation that can cause pain and frequent urination. The most common antihistamine is hydroxyzine, though diphenhydramine and loratadine are also used occasionally because patients can get them over-the-counter. Antihistamines are generally a safe and effective method of managing interstitial cystitis, but they can cause extreme drowsiness in some patients.

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