acne
"I used doxycycline and I really loved the results. The reason why I'm writing here is that I see everyone's getting sore stomachs or discomfort, and I did get that too. I went to my beautician, and she said to take a prebiotic before you take doxycycline. I tried and it, and it really worked! My stomach pains where gone and my skin was clearing. No harm in trying, so go for it."