Lately, well actually for 6 months or so now my lips feel very sore after even the least intensity of playing. I can play low long tones at pianisimo and my lips will still hurt (I can feel them for hours and even in the next day). Originially I thought this was just due to marching band where I had a solo which was a sustained High C at Fortisimo that I was basicially required to play 20+ times a week. I also played very very loud (too loud to be honest but still with acceptable tone) throughout practice. I thought this soreness would go away at the start of concert band. It hasn't. I'm now playing 3rd part in jazz band ( thank god ) and 2nd part in concert. Recently I've been disapointed with my playing so I've tried to create a practice session that goes > Long tones from G in the staff chromatically down to a low G which takes about 10 minutes > Tounging exercises (single tounge) so I do alot of the "first studies" in the Arban book > One of the Lip slur or maybe two exercises of lip slurs in the Arbans book depending on how im feeling >Rest (till my lips fill less sore but still sore) >Then I try to work on music I told myself I probably needed to take a day away from trumpet to get the soreness to go away and I did. The next day I start playing longtones and then on the first few notes of the tonguing exercise my lips start to hurt again (this pain btw is at the corners and going down to my chin muscle area). Then I tried to eliminate pressure from my playing, which for the most part, I now play without any pressure for all of my notes at least until a high B. Still when I play that high I use very minimal pressure. I'm also trying to play soft as possible. Still soreness. Do any of you have any suggestions to get rid of this pain? If it means anything I have very big lips and my range has been at a standstill of a high D- weak F area for about a year.