Bactrim can be used mainly for the treatment of skin infections. It is a topical topical antibiotic indicated for skin infections caused by gram-positive bacteria, such as primary skin infections like impetigo, boils, folliculitis, etc. It can also be used for eczema co-infections and for superficial trauma co-infections that do not exceed 10 x 10 cm area and therefore can also be used for secondary infections. Mupirocin is its main ingredient, which mainly has a relatively strong antibacterial effect on a variety of Gram-positive cocci related to skin infections, and also has antibacterial activity against drug-resistant Staphylococcus aureus. In addition, it also has some antibacterial effect on some gram-negative bacteria. Therefore, the drug Bactrim is mainly used as a topical antibiotic for skin infections.