Polysensitivity in fixed drug eruption is a rare finding that occurs because of chemically unrelated drugs.In cases of polysensitivity, the lesions may occur on identical or separate sites, the latter indicating the r...Polysensitivity in fixed drug eruption is a rare finding that occurs because of chemically unrelated drugs.In cases of polysensitivity, the lesions may occur on identical or separate sites, the latter indicating the role of antigen-specific mechanisms in the site-specificity of fixed drug eruption.I herein report a patient with separate site involvement induced by trimethoprim-sulfamethoxazole and tenoxicam, a drug combination that has not been reported before.Reactivation of old trimethoprim-sulfamethoxazole-specific lesions after a long resting period was another striking feature.展开更多
文摘Polysensitivity in fixed drug eruption is a rare finding that occurs because of chemically unrelated drugs.In cases of polysensitivity, the lesions may occur on identical or separate sites, the latter indicating the role of antigen-specific mechanisms in the site-specificity of fixed drug eruption.I herein report a patient with separate site involvement induced by trimethoprim-sulfamethoxazole and tenoxicam, a drug combination that has not been reported before.Reactivation of old trimethoprim-sulfamethoxazole-specific lesions after a long resting period was another striking feature.