Girls please! embaressing problem?

i have been getting my period for about 3-4 years now and i have only had mild occasional cramping. BUT i am expecting my period in a few days and the tips of my nipples are SO sore! they feel like theyre burning! this has been going on for three days now and i havent been able to sleep with type of shirt or bra on because it hurts so bad. and it is extremely painful to feel my bra rubbing on them all day. is there any way that i an make this better? i tried lotion and vaseline and someone even suggested band aids. but none of those really worked. any ideas?