Treatment protocol:
The included patients were indiscriminately classified into two group; Group A; 30 patients received two sessions of NB-UVB weekly for 3 months with the dose of 100 mJ /cm2 and the dose of NB-UVB for 310-315 nm with a total emission limit of 312 nm. Group B; 30 patients received methotrexate 15mg per week orally in 3 divided doses 12 hours apart for 3 months. Folic acid 1mg daily in days before and after days of MTX dose was taken.