These materials can be run through an autoclave sterilizer and are not porous, which means that they do not harbor bacteria and can be worn in a fresh piercing or for extended periods of time.
Equipment should be single use only or sterilized in a recently spore tested autoclave sterilizer.
If you suspect that your jewelry may be the problem, do not change the jewelry without visiting your doctor who can sterilize appropriate jewelry in an autoclave sterilizer.
It cannot be put into an autoclave sterilizer without melting, and it is extremely porous.
Finally, piercing guns are rarely sterilized in the appropriate manner for body piercing tools by using an autoclave sterilizer.