How do you get rid of hickies and can they form blood clots?

No, they can't form blood clots, but they are damn ugly to have. They have to fade by themselves.

Tick

Put a little lemon juice on them every day for 2 or 3 weeks and it will fade them.

** yep only time

Try makeup concealer till they go away in time

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But no, really... Yeah, cover up is the best way to go, but cocoa butter is really good at clearing up things like that, you might try using that on the spots.

I haven't tried this however I have heard that you should apply ice and the blood will retract.