The best way is honestly just to talk to them. Hope it works out
See a doctor
It depends what you did before it started hurting there's medicine you can buy
you shall tell your friend to stop and make them go out together
Rejection is painful no matter what, it's about moving on.
If your best friend lies to you a lot, then stop talking to him/or her and make *New* friends that do not lie to you.
You really shouldn't make your best friend stop liking someone unless that person's a bad influence on her/him. If they ARE a bad influence, just explain to your friend that he/she is not right for him/her. Make sure she/he knows how you feel about this. Hope this helped
probably something that has to do with the vitiams and meniarls in it
T o make it stop hurting.
Closest I could find is this: Bill make(s) remarks like: When does the Hurting stop or Make the Hurting stop.The Terrible Thunderlizardshttp://www.angelfire.com/tv2/doctari/ttl.htm
You should tell them it is hurting your feelings. And really if they are hurting your feelings, are they really your friends? If they doesn't stop, they are not worth it. Get some real freinds!!!
I suggest you move on from this jerk and find someone who loves only you, and not your friend. Then tell your friend that they're hurting you by going out with your ex. If they're really your friend they would except this and stop. If they keep dating, find a new person to date and a new friend. People who respect you.