Hmm. i have heard the best thing to do is remove it asap. Because if you try to suffocate it with vaseline it spits all the yeuk back into you as it suffocates. Needess to say, do it carefully so as to get the mouthparts out. I never pull quickly.
WW -I want to know more about these red ones. Do they disappear under the skin completely, or do they just sink their mouths in?