Red spot on boob (tmi sorry need some help)

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So I have this thing on my boob. Not sure what it is. It's like a couple layers of skin are gone. At first I thought it was an ingrown hair and put some stuff on it with a bandaid. It seems to be infected cause it leaks clear liquid. Eventually I was able to get a hair out but it's not getting better. It's quite irritated and itchy. Any advice and help is really appreciated! Thank you!