Human bites are usually caused by one person biting another, although they may result from a situation in which one person comes into contact with another person's teeth. Human bites that break the skin, like all puncture wounds, have a high risk of infection.
Human bites may be more dangerous than most animal bites. There are germs in some human mouths that can cause infections that are hard to treat. If you have an infected human bite, you may need to be admitted to the hospital to receive antibiotics through a vein (intravenously). In some cases, you may need surgery. IF he bit you and broke the skin, the bruised area may be infected. Having braces doesn't matter unless his braces or his teeth broke the skin. If so, you may have a bad infection. How To Get Rid of a Hickey?
A hickey is broken capillaries. As with any other bruise, it takes a while to disperse. Sometimes a bruise can take a month or so to completely disappear and sometimes they fade in a matter of days. If you were to slam your shin into the bottom of a shopping cart, that bruise is likely to be there for a few weeks. If you lightly bump your knee on a table, it may be short-lived.