You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is A patient with recent onset primary generalized epilepsy, develops drug reaction and skin rash and neutropenia due to phenytoin sodium. The most appropriate course of action is: and explain in detail?
(Ref: Katzung, 14th ed. pg. 418-19; KDT 6th ed. pg. 405)Hypersensitivity reactions like rashes, DLE, lymphadenopathy and neutropenia require that phenytoin to be stopped.