urinary tract infection
"Macrobid immediately helps get rid of my UTIs and I am prone to very bad ones because of some preexisting conditions. Once on a trip I happened to luckily have a spare one floating around in my toiletries that I took when I realized that I had developed a UTI and, in spite of not having a full regime, it still got rid of it. HOWEVER, I do have an EXTREME reaction to Macrobid. It gives me the most EXCRUCIATING body pains a couple hours after taking it. The best way that I can describe it is like acid in my veins or my nerves spasming nonstop. I vomit, cry, and can't even stand, bend, or roll over in bed without exacerbating the pain, making me nonfunctional. After about 2 hours it goes away but it is awful until then."