Yeah, that's really the only way to reduce the disorder. Once you convince yourself its panic, it doesn't stop but... it gets a lot easier. Its jsut so completely terrifying that its hard to convince yourself that really, this time you're not going to die, just like every other time you had these symptoms.
Oh, but do watch out for the lapse. Every now and then, your panic may.. erupt is the best term I can think of. Violently erupt, and hit you very hard. Know its a possibility, so you can be better prepared for it if it does happen.