methotrexate what are your thoughtsjust got script

i just got back from my derm who gave me the script... can someone put there input in... im seriously trying to think if its worth takeing... what iv read mainly is its successful in plaque psoriasis.. due to it slowly down the rapid cell turn over... so if our lips have increased cell turn over which im pretty certain the do its not normal for people lips to shed every 3 or 4 days....

if people can share their thoughts etc etc that would be much appreciated... i really want to try it becasue imuran just isnt doing anything...