IRCT201701299014N141 IRCT 2017-01-29 Vice-chancellor for Research the Technology, Hamadan University of Medical Sciences Comparing effect of sertaconazole 2% cream versus clotrimazole 1% cream on treatment of seborrheic dermatitis in adult Comparing effect of sertaconazole 2% cream versus clotrimazole 1% cream on treatment of seborrheic dermatitis in adult: Double blind randomized clinical trial 2017-02-19 anticipated 100 Complete https://irct.ir/trial/9579 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Other design features: Randomization The patients will be randomly assigned to the intervention and control groups using block randomization. Blinding: Patients will be unaware of the type of intervention. The physician who will examine the patients will not be aware of the intervention. Therefore, the trial will be run as double blind. 2 Seborrheic dermatitis. Intervention 1: Intervention group 1: Sertaconazole 2% cream twice a day for 4 weeks. Intervention 2: Intervention group 2: Clotrimazole 1% cream twice a day for 4 weeks.