Allergies are a fact of life for many of us. Whether it’s hay fever, hives, insect bites, or food allergies, the body’s immune system overreacts by releasing histamine, which causes swelling, itching, sneezing, runny nose, watery eyes etc. Antihistamines are one of the main tools to tame those symptoms. But not all antihistamines are the same. Below I’ll summarise the different kinds, when they’re recommended, what to watch out for, and a quick guide to matching allergy type to antihistamine class. Types of Antihistamines Antihistamines are primarily H1 receptor blockers (they block the effect of histamine at H1 receptors). There …
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