This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autoimmune skin disorders, Subject name: Dental
Ingram regimen is used in treatment of 
Select and explain. 
A. Vitiligo, B. Psoriasis, C. Lichen planus, D. Lichen nitidus
B: Psoriasis
Answer: B: Psoriasis 
Explanation: Ingram's regimen used to treat psoriasis tar bath followed by irradiation with minimal erythema dose with UVB followed by application of dithranol/anthralin paste. goekermans regimen is application of coal tar for 22hrs followed by tar bath and exposure to UVB. IADVL textbook of dermatology page 1043