I do the same thing as well. I have recently picked up crocheting in order to keep my hands busy and off of my psoriasis.

Feeling you! I’ve had psoriasis, celiac for over 35 years and have had all of those symptoms and side affects,
could I suggest cooling down your body’s core it my help with the itching, and less expensive treatment.. it can be done with foods and gives your hands something to do , and the brain something else to focus on rather than scratching , I say that even though I know that sometimes it’s just impossible to not itch 🙂
Celery juice helps 👌 very interesting information about it on web
MM Anthony Williams . Good luck

Hi, I know your post is quite old, and to be honest I don't have a lot to say that will help, other than me too. I have been diagnosed with excoriation disorder (it's the term my doctor used) I compulsively pick at lesions, flakes, bumps, even nothing, on my scalp. I think a lot of people responded with advice for itching, and that can be helpful, but if you are anything like me then it isn't about itchiness. It is an inside motivation that is completely inexplicable that drives me to pick at my scalp. I have been doing this since I was a freshman in high school, picking the same spots for multiple hours a day causing bleeding and pain. I apologize if this is oversharing but I have a hard time finding people who have the same experience. I finally sought help when parts of my hair grew in straight from strain, and that is when I also got my psoriasis diagnosis. I find doing my best to manage my skin helps, it's easier not to pick if there is less to pick (however that is not often). Being honest with yourself and forgiving, it's okay we are only human. I also crochet which distracts for a while until all of a sudden I've stopped and my hand has somehow drifted up to my head. I even pick my lips and skin on my ears when my head needs a break. I have taken to following a routine, which does the best to break my habit and reset my mind. I think my therapist called it mindfulness. If you can, when you notice you are picking get up, stand up, remove yourself from that spot and go do something else. For me, I brush my hair, braid it, and put a hat or bandana on (which is also a physical barrier). I have done that several times within one hour, just constantly retraining myself to stop, pull yourself out of it. Say I'm stopping now, and try your best not to start again. I will say it again though, be patient and be kind to yourself. All you can do is try to be better than the day before and if you aren't, then try again tomorrow. I've had moments where I look in the mirror and cry asking myself why I can't just stop, and it's hard not to beat yourself up, but please try. I wish you the best, and I hope things work out.

I believe I have it also! In my mind I believe I think that getting rid of the plaque will get rid of the psoriasis! I know that isn’t so!