Hi Sergio, welcome along.

I'm sorry to hear you've had a bad time with p and feeling so low...we can all relate to how you're feeling. I always think it must be so much worse to suffer psoriasis as a child as kids can be so cruel and unforgiving. I was more fortunate as I didn't get psoriasis until my twenties, so I'm thankful for that.
I thought it was bad enough when I saw a middle-aged Consultant Derm some years ago (who must have seen
hundreds of patients with all sorts of skin disorders from mild to severe in his time) when he looked me up and down as I stood in his office in my undies feeling
extremely self-conscious, vunerable and depressed and said, "oh dear, you ARE a mess!" But for a doctor to tell you that you're 'contaminated' beggars belief! What an awful experience for you.
What medication have you tried so far? I'm on Methotrexate at the moment which is helping my skin (also PA which I have).
Have a good look around the boards - as Tangles (Donna) says, there's plenty of information, help and advice here.