He's doing better with topical abx. He developed a red streak moving up his penis, which we watched very closely, but it is improving. The swelling and discharge are better, and he's in less pain.
I want to say this delicately, because I'm grateful for all the feedback and because the issue of genital integrity is very important to me, but when I said two or three different ways that I was confident we were dealing with an infection and kept getting told that it wasn't one, that was frustrating. I'm not new to the parenting scene, or the penile one, either. I want to be sure that in giving advice to new posters here, we're not ignoring medical issues when they crop up. I will bang the drums for this cause as loudly as anybody, but I don't want to cross the line into thinking that being intact means being guaranteed a life without problems. This was a diagnosed balanitis, and if I had ignored it, it would have caused my son a lot more pain for a lot more time. Sometimes the instinct that something is wrong is on target.