psoriasis
"Hello everyone and warm thanks for all extremely helpful comments!
I received my second Stellar injection about one month ago, an phased out the cyclosporine one week ago. The skin is incredibly clear of spots (since 25 years it has not been this good), but as a change, an almost intolerable itching started. 

a) Would anyone have experience how to calm down the itching? 

Taking sodium bicarbonate with water seems to help a bit, but I am still scratching in my sleep.  I have allergies, and thought that maybe antihistamine could work.

Thanks in advance for any hints you may have!"