Table 1: Effect of different formulations on Histopathological features on U.V.-B-induced psoriasis in rats.

Treatment Munro’s microabscess Elongation of rete ridges Capillary loop dilation Positive control + +++ ++ Standard − − − Test 1 − + + Test 2 − − − Test 3 − + − Cream base + ++ + Extract − + −

Notes. + mild or slight grade lesion; ++ moderate grade lesion; +++ severe grade lesion; − no lesion in.