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 19-year-old woman presents to her GP with conjunctivitis. This has occurred in early summer for the last five years, each time lasting for about six weeks. Choose the most appropriate drug from the choices below: and explain in detail?
This woman has seasonal allergic conjunctivitis (hay fever) and her symptoms should respond to a topical antihistamine such as antazoline.