Hello,
anything above 20 is classed as severe. There are not many people who score over 30.
I had a PASI 5 weeks ago and it was at 23 whilst on humira. A week later skin was even worse but no PASI was done. Since then all treatment has been stopped and funding for infliximab has been refused.
My derm nurse is back again a week on Monday so I am likely to have anothe one done and who knows what it will be.
My DLQI is high but it is easy to make that high depending on the fame of mind I am in.