Well, I've decided to give the AHA another test run. I applied a tiny bit behind my right ear at about 2:05pm. It's now 2:21, and I haven't noticed much of a reaction. It's a little pink, but not the bright, raging pink that it turned last time. And it's not really burning or stinging this time. I just feel a slight tingling sensation.
If it doesn't get any worse, I'm not going to bother with washing it off, like I did last time. I'll just leave it on for twenty four hours, and see how the skin there looks tomorrow.
I'd really love to be able to use the AHA again. I miss how smooth it made my skin feel.