Methicillin-resistant staphylococcus aureus, also known as MRSA, is resistant to many antibiotics, according to WebMD. As of 2014, a doctor may prescribe clindamycin, trimethoprim and sulfamethoxazole or linezolid to treat MRSA. Invasive MRSA may be treated intravenously with Vancomycin.
According to WebMD, MRSA has become resistant to methicillin, amoxicillin, penicillin, oxacillin and several other antibiotics. MRSA was discovered in 1961 and has been adapting to antibiotics since then. Researchers experience difficulty trying to keep up with MRSA, but antibiotics are not always required. For people who have a skin boil from MRSA, a doctor may just drain it by making an incision. MRSA is carried by approximately 2 percent of the population, but most of the carriers are not infected.