My husband is a MRSA carrier and is treated daily for this. However, the condition arrived from a splintered tibula from a motorcycle wreck. He does have a Titanium screw that holds his tibula together, That was in 09 til now. But now he has developed dark patches of skin that reminds you of bruises. There has been no trauma to his foot. But he had a severe case of MRSA. I research gangreene, do I need to go get him tested since it is showing on the leg that had the trauma