What is the best time to give oral psoralen with UVA?
Ans is'b' i.e. 1 hour before UVA Psoralens (mostly 8- MOP) is given orally 1-3 hours (average 2 hours) before exposure to UVA.
Half n hour before UVA
1 hour before UVA
Half n hour after UVA
1 hour after UVA