How to use oxygen in General Board Posted April 25, 2012 Ok so I started using oxygen. I have not been able to get a 25 lpm regulator yet, so I have only used the 10 lpm one that came with the tank. The problem is, the oxygen is just delaying the inevitable for me. I will suck on it at max power for 15 minutes. pain goes away. but then its back like clockwork 15 minutes later. Eventually I just give up, take some pain meds, and ride it out.Â Will the 25 lpm thing help, or is oxygen just not for me? I've heard rebounds are a problem. Goddamn, I wish it didn't take so long to grow!! I can't find anything to bust with!