Aspirin is a simple drug. it has many useful effects. it can stop a headache or an earache. it helps take away pain in the fingers or knees. Aspirin can stop a fever if you have the flu. Or it can make you feel better if you have a cold. Some doctors believe that aspirin also can result in a healthy hearth. They say that some people should take an aspirin everyday. For those people, aspirin may stop hearth disease.