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A member asked:

Take antihistamine pills (aerius) right before workout to avoid excessive redness? or should you take them in the morning or at night bc last a day.

A doctor has provided 1 answer
Dr. John Chiu answered

Anytime: Although there had been study suggesting antihistamine was more effective when taken in the evening, in practice I have not seen much difference as long as you take it. In your case, taking an antihistamine about 2 hrs before exercise may make sense.

Answered 5/2/2016

1.3k views

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