I've been away from the horn for way too long, but I am on a regular practice schedule again. My lips (the center portion that buzzes) feel just fine, and I don't use a lot of pressure when I play. In fact, I know I need to walk away from the horn as soon as my embouchure starts spreading on notes at the top of the staff or higher. I'll do a few chromatics from low C to low F# the loosen up and focus again, and then put the horn down for that session. However, as the day goes on my corners are what really bother me. They just feel funky (that's all I know to say), maybe tired, and my sessions run sometimes as little as 8-10 mins. Is this just something I'll get over as I continue to play over the weeks, months, years, etc. or is there something I might be doing wrong and could fix now? I guess my gut tells me that patience will prove that this "problem" is just a natural growing pain, but I just want to know if anyone else knows anything about this or any remedies. A friend of mine that I haven't talked to in a while, he's with the Boston Symphony now, told me something once about taking a hot, wet towel and laying it over your lips and just relaxing at night to recover. Ever heard of this, done this, seen results, etc.?