Thanks for the query.
The best way to prevent spread is to treat the infection.
MRSA is bacterial infection.
Treatment is with antibiotics but the choice of antibiotics should be based on culture and sensitivity tests.
Treatment without this test might result in resistance and failure
Please meet a dermatologist
for exact diagnosis.
Let me know if you have any other doubt.
you can ask a direct question to me on this forum, following the below link.
Wishing you a good health.