Question

what is the most difficult part for someone suffering from OCD

Answer 1

Answer:

going to a hospital he even doesn't like pass through the patients

Answer 2

Waiting is the hardest part.

There is absolutely nothing more toxic to an obsessive-compulsive than boredom. Boredom is to obsession as an incubator is to an egg, or a compost bin is to rotten fruit: it adds heat and pressure and that accelerates the process exponentially. It’s never pleasant to find your thoughts drifting to a horrible image or irresolvable problem—but when you have nothing else to distract you, when there’s nothing to occupy your mind, such thoughts can quickly escalate from annoying to excruciating.