Okay yesterday me and my boyfriend were fooling around and he sucked both of my breast for a long period of time. Mostly the left one. Today, I had breast pain n my nipples were sore. I looked it up online n they said it cud be an infection so I put some rubbing alcohol on them just in case and to soothe the pain and after a few hours they have been burning. Could it be the alcohol? I'm also having PMS so could that possibly be the reason my nipples are sore? Thank you