I love corn on the cob and eat it whenever I can. That said, when you're first starting out, go easy. I didn't eat it at all with my ostomy since I had had several blockages, so shortly after I got my j-pouch, I happened to be at a BBQ and ate two back to back; first I had in a couple of years. The next 24 hours was a little rough, though I wasn't blocked, just in the bathroom a lot.
Since then, I've made a decision not to be too overzealous with my corn eating. One is often enough.
The point is, chew, eat slowly, and don't overdo it, and you'll be fine.