Bleach will kill it on surfaces.if you are trying to get rid of MRSA it takes certain types of antibiotics like tetracyclines.Get some lysol it will kill MRSA too.
You can use a 10-1 solution of bleach and water to irrigate the infected areas. Don't use antibacterial soap always use just water and your regular soap. You may also want to go online to mrsa staph infection resources.com you will find lots of good up to date information.