Hello dear, Thank you for your contact to health care magic. I read and understand your concern. I am Dr Arun Tank answering your concern. No, leg discolouration is not the sign of MRSA starting. MRSA is the methicillin resistant staphylococcus aureus. So the infection caused by he staphylococcus aureus will be same as that of MRSA. MRSA additionally has high resistant pattern to the routinely prescribed medication. But there are chance of the MRSA in future is on you. In my advice you should test yourself for the MRSA swab test from the nasal septum, umbilicus and groin. If the report state that your are carrier of the MRSA than you should take the mupirocin ointment therapy. This will clear up the MRSA from your system. And you are free from the symptoms even in the future. Along with this good hygiene keeping can help clear the infection away from the body in future. I will be happy to answer your further concern on bit.ly/DrArun. Thank you, Dr Arun Tank Infectious diseases specialist, HCM