allergic to drug

例句：

1. 1. She is allergic to cats and cannot be around them.
   她对猫过敏，不能和它们待在一起。
2. 2. The patient was allergic to penicillin and had to be given an alternative treatment.
   病人对青霉素过敏，需要接受替代治疗。
3. 3. Allergic reactions can occur when people consume certain foods or come into contact with certain substances.
   当人们食用某些食物或接触某些物质时，可能会出现过敏反应。