No its not true. The brain can be healed with education and therapy. You can "rewire" your brain with behavioural therapy. I think the therapy needed for OCD has to be far more intensive than what they have on offer for the public though. I've seen people do amazing things with therapies and brain training, but it does need to be consistent. Far more so than a once a week therapy session.

You might not have to be on meds forever but maybe for now you need them. Thats just how it is sometimes unfortunately. Im on a tiny dose of zoloft now after previously needing a high dose to help control it.