I had a mrsa infection about 3 months ago but was never tested to see if I'm a carrier. I want to get my nose pierced, is that safe?

No. . The nose is one area where MRSA hides. I would recommend getting checked to see if you are a carrier. Even if you are not a carrier, I would be very cautious about piercings. .
Hard to say. MRSA is everywhere & every time you have a wound it could become infected with this or another germ.Proper procedure & care after the piercing can reduce your risk.I'd. let a pro do it.