By "talking him through it" all I mean is staying with him while (hopefully) the extra dose of Sinemet has a chance to kick in. Or I massage his foot or shoulders. Or just talk about something totally unrelated to Parkinson's. Anything to get him to stop focusing on the pain and start thinking rationally. He gets very irrational and unable to think clearly during these panic attacks. All he thinks about is how much it hurts. If I can stop him from going over the edge, then I can avoid giving him the Ativan. But if we're in a situation that we can't control (like traveling) or if we don't catch it early enough and the panic goes full throttle, then the only thing that we've found to help fairly quickly is Ativan. The alternative is waiting it out, and it might be hours until the next c/l dose is scheduled and then takes effect.