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I too got the constant migraine headaches from zicam. I'm sure it was this product because I have never had migraines headaches like this before. I have stopped taking it but my head remains in a state where I'm going to get the exact type of headache again after two weeks. I'm now under doctors care to find out what going on as the result of using this product.

Never again!!! I'll let the cold take its coarse from now on.