started taking Doxycycline for MRSA Staph infection. 2nd time ha...

started taking Doxycycline for MRSA Staph infection. 2nd time having. Given along with Bactriban ointment for the nose. 1st time had, was prescribed Septra (trimethoprim and sulfamethoxazole). Seemed to work, but disappointed when reappeared. Doc. thought Doxy would be more effective. Stomach burning like acid reflux. Relief some when only lite meal, like rice. Doctor prescribed 2 pills twice daily to start... had me vomiting and dizzy. Then settled to 1 pill twice daily. Stomach pain definite issue with this drug!