How to cope with transitioning off methotrexate after 10 years??

Hello there, has anyone transitioned off methotrexate successfully? I've been taken off the drug because I was getting a rash and growths, etc. Its been a month, and my body is flaring up. I'm scheduled to go back to the Rheumatologist in 2 months and I am getting scared of the pain... Any advice on what to eat, avoid, etc would be so appreciated