MRSA are resistant staph bacteria which cause skin infections usually but also cause system infections when enter in blood stream. These bacteria are acquired from hospitals and community by direct contact with the infected person or objects. These bacteria are also present on our skin and inside nasal passage without any harm but can develop infections whenever our body has any cut, burn or wound. MRSA infection begins with red painful lumps which look like pimples and then these turn in to blister. MRSA can be treated with antibiotics like vancomycin. For more details and pictures of MRSA infection, visit, MRSA pictures.