Light burn hot to fix it rapidly to avoid future problems?

Pick it off now, or pick it off later, either way your gonna have to pick it off. The plant tissue is dead. The green tissue below is not. What happens when you top a plant, you promote side branching. What happens when you cook a bud top, same idea, in theory. By the way, I've never heard of co2 being able to burn a plants tissue. I've run both compressed gas, and propane burner in the past. And to double check i did some googling to see if i could find anything anywhere that talked about co2 burning plants, and i found nothing.