right were to start, after the anniversary if my brothers death may 22, had to have my tooth out 5th of june (badly infected) tooth extraction went well then two days later looked like it was infected so took 3 erythromycin (antibiotic) wich brought on stomach cramps, went to see my regular dentist who didnt take the tooth out, and she said i had a gum/bone infection and gave me metronidazole 500mg, took 1 and had very bad reaction. next day went to see dentist who took the tooth out and said it wasnt ifected just needed cleaning out, so dint even need antibiotics, the thing is with the reaction too the antibiptics caused me really bad stomach probs ive been taking lansoprazole for 4 weeks now, and still am having trouble eating and varios pains in my stomach, docs sending me for a endoscope but am so worried i have a stomach ulcer cos of the pain and constant burping etc. has anyone else had reaction to antibiotcs like this it been nearly two months since the reaction. sorry for wafflin on, hope everyones o.k