Previous studies, otherwise, reported different alleles contributing in SCARs such as HLA-B*15:02 and HLA-B*57:01 which were shown to be related to Carbamazepine–induced SJS/TEN, abacavir–induced hypersensitivity and flucloxacillin–induced liver injury (32). The gene discussed is HLA-B; the disease is toxic epidermal necrolysis.