bacterial skin infection
"I was prescribed Bactrim ds for 14 days twice a day. I was told to take with a probiotic as it could kill the good bacteria in my gut, so I did.  The side effects were severe headache,  and fatigue.  After 5 days of taking this medication I got an allergic reaction, so I stopped the antibiotics. The reaction was a severe rash on my face, neck, and chest. It was bright red, hot, and itchy. A mild rash spread to the rest of my body. I was given other medication to help the the allergic reaction which helped after 4 days.  The abscess did go down and eventually healed on its own."