I am new to this board I have fibromyalgia but lately i have had a allergy reaction and would like and info anyone can give me. First I had a colonoscopy and when i tokk miralax I starting itching and broke. out in hives so i knew i was allergic. No more problems then 2 days ago i had acid reflux and took anti acid pill like tums. Laid down for awhile and then i started to cough and couldn't seem to stop and for no reason and then started to itch and got up and had some red welts. So figured this was also a allergy reaction. But what do you think that the 2 items have that could be causing this?? And have never had a reaction before to tums. Thanks for any info anyone can give me.:dizzy: