Oops. Beware when read

So tonight my boyfriend and I had sex and it was fine and then he accidentally stick it in somewhere else. It hurt so bad we had to stop. Later on after sex I found out I was bleeding in there(not a lot like a Q-tip amount) . (I think he tore a little bit of "it")My question is what can I put around it to prevent scarring and reduce the pain without it burning and gettin affected and what not? Should I see a doctor?