A question for trumpet players?

I'm a high school trumpet player, and my playing is horrible right now (I DO PRACTICE, NO NEED TO SAY)

Recently my lips got cut (from being too chapped, I'm an idiot...too lazy to buy chapstick) in 2 places: Basically directly above and below (on the inside) the aperture of my embouchure.

Spontaneously (I really can't tell if it's due to the cuts or if I just spontaneously got bad) I can't buzz anymore. Half the time when I play a sound doesn't come out anymore, the other half it's really bad. Then when I go to a rest I can't play. It's completely messed up my timing etc. and I've made countless mistakes in the last couple of days to make me look like the worst player in my band.

I have to ask, is it a problem with my embouchure (which is bad, though not horrible) or is it because of the cuts?

I really want to know the answer, I have been getting a tad pissed off at myself (and a bit depressed...no, not clinically depressed, don't worry) because I can't play for **** anymore.

Occasionally I'll have spurts where I was as good as before but that comes after like 45 minutes of playing and then goes away.

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FOR ALL THE LAZY PEOPLE WHO DIDN'T READ THAT, MY QUESTION IS:

Can cut lips kill your ability to buzz (not just play but buzz)?