Swich 100 Syrup is used to treat certain mild to moderate bacterial infections. These include middle ear, throat, skin infections, anus and rectum infections in the women, urinary tract infections, community-acquired pneumonia, sexually transmitted bacterial infection of the urethra and cervix. Swich 100 is also used to treat inflammation of the sinuses (acute maxillary sinusitis). It is also used to treat lower respiratory tract infections such as long-term inflammation of the lungs (also called, long-term bronchitis). This medicine works by preventing the formation of an outer layer of the bacteria. This medicine helps by killing the bacteria and removing a bacterial infection from the body.