My doc took a stool sample and results showed Pseudomonas aeruginosa and Staphylococcus aureu bacteria present. She prescribed Bactrim which I had an allergic reaction to. But before I try another antibiotic can you please tell me if these intestinal bacteria can go away on their own without using and antibiotic???

Summarized question: Does the staphylococcus aureu bacteria in the abdomen needs treatment?