How long have you had him?

I agree that a vet checkup and possibly some tests are needed.
In my opinion (just because i went through a couple of annoying vets with pickle who were quite condescending and didn't help at all) - While advice on the care of your animal from your vet is great, it is their main job to take care of the
physical health of your animals, yes there are mental health products out there and they can help if it comes to that. But as we cant talk to them we will never have animal psychologists, There are behaviour experts out there and i actually intend on becoming one, BUT nobody knows your pet better than
you.
While many picking and plucking problems are indeed caused by mental issues such as stress, boredom, habit, etc. Do NOT let your vet fore-go tests for plausible
physical causes just because they think that a mental issue is more likely (unless you agree with them and they bring up something that you might not have considered in the environment). Do not allow them to eliminate or ignore any possibilities until a test has proven that it is not the case.
you mentioned trying some products... You could try aloe vera first.

you can easily buy extracts and dilute them and mist him lightly every now and then to see if that helps the itching. And if you have a plant you just break a leaf and stir a tablespoon or so of the goo inside, into a couple of cups of boiled water to see if that will help the itchiness. it would be cheaper to try than some of the other products that claim to do exactly the same thing anyway...
