Thanks for the insight. I guess it's not really known wether chronic physical irritiation like throat-burning bong rips causes cancer. But I can't continue to risk it. And no I don't smoke cigs. I looked at the back of my mouth and throat yesterday with a flashlight and I saw red lesions. As of Sept. 4th I have ceased smoking entirely so I can let my throat heal, and when it is finished healing hopefully I will own a vaporizer. Are there less expensive vaporizers that work than the $500+ volcano?

and if anyone else has anything to add on the subject of whether burning the throat can cause cancer please share because I'm still worried about it. Ive taken a life time's worth of bong hits in the last 5 years.