Sorry for being old, and an F on an M site but what is a snakebite?
On Tekla's comment, I interview people regularly for positions in health care. I don't mind ear rings on M or F, unless they are excessive, then they start to read as mutilation and possible unsettled personality; I (as an employer) don't want the grief, pass on you. Now a days YOU have to give me a reason to employ YOU. It is very easy to find a reason not to employ someone, no matter what the laws say.
You may argue, but will never get the chance BTW, that your piercings mark you as an individual. So what?
Facial piercings? again I'm not likely to view them favourably. It doesn't worry me, but the 80 year old that I want you too look after, or the people coming through the door frightened and worried will not take comfort in your appearance.
Have a think. Why do people in authorative positions wear suits and ties if male. Business suits, knee length skirts, no high heels and don't flash the puppies if female? Emergency workers wear uniforms etc?
Because it puts people at ease. How would you feel being carried into the ER, fading in and out blood everywhere and a person with black eyes, lipstick and piercings, fake teeth and lord knows what else, looks at you as you fade in and out, and says "you're safe now" I'd be off the barouche and running

Just my thoughts
Cindy.