Same Patient, Same Site: Using Different Topical Medicine for Psoriasis

Topical use is the main advantage for dermatological therapy due to the outer-layer features of skin. Consequently, numerous preparations are available for the dermatosis. However, the efficacy evaluation of different preparations accurately is always very difficult. Psoriasis is a common skin condition characterized by persistent erythematous scaly plaque. It is estimated about 3% population suffered from this notorious calcitrant disease. The traditional and accepted method (until now it is also popular in practice).