Many people don't pay attention to mild illnesses, thinking it's unnecessary to bother a doctor, especially since it costs money. This view is completely wrong. If you see a doctor when your condition is mild, it's much easier to treat and the medical costs will be much lower. Waiting until the condition becomes serious before seeing a doctor not only incurs huge medical expenses but also makes it much more difficult to cure. Remember this: "Always see a doctor promptly when your symptoms are mild."