Until studies are done on the effectiveness of taking aspirin and other fever-lowering drugs, it may be hard to know when to treat cold symptoms and when to leave them alone.

• 除非对阿斯匹林和其他退烧药的效力做完所有的研究，否则很难说清楚什么时候应该针对感冒症状下药，什么时候应该放任不管。