Most sedating antihistamine

When you come in contact with something you’re allergic to, your mast cells open up, spilling out histamine and triggering the symptoms we associate with an allergic reaction: stuffy or runny nose, itchy eyes and sinus pressure.Because they work by preventing histamine from escaping from your mast cells, antihistamines work best if you take them at least 1 hour BEFORE being exposed to what sets your allergies off.

This drying action can actually help relieve your runny nose and watery eyes.

If Claritin®, Allegra® or Zyrtec® aren’t giving you enough relief, you can try one of the older sedating antihistamines.

The most powerful is Benadryl® also known as diphenhydramine.

It’s more likely to cause you some drowsiness compared to Claritin® or Allegra® but because it’s more drying than either of them it can help dry up your runny nose.

You only have to take it once a day and it causes minimal drowsiness.

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