Depends: For seasonal allergy patients, starting one's seasonal allergy medications a couple of weekd before the season starts can be helpful. For those with cat or dog allergy and going to visit a house with cat or dog, one one can start to take one's medication a week or so before hand.
Answered 11/6/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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