Believe it or not, those annoying symptoms you're experiencing are part of the natural healing process -- evidence that the immune system is battling illness. For instance, a fever is your body's way of trying to kill viruses by creating a hotter-than-normal environment. Also, a fever's hot environment makes germ-killing proteins in your blood circulate more quickly and effectively. Thus, if you endure a moderate fever for a day or two, you may actually get well faster. Coughing is another productive symptom; it clears your breathing passages of thick mucus that can carry germs to your lungs and the rest of your body. Even that stuffy nose is best treated mildly or not at all. A decongestant, like Sudafed, restricts flow to the blood vessels in your nose and throat. But often you want the increase blood flow because it warms the infected area and helps secretions carry germs out of your body.
It’s been used for thousands of years in Asian medicine to treat stomachaches, diarrhea, and nausea, and studies show that it works for nausea and vomiting. There’s some evidence that it might help with menstrual cramps, too. But it’s not necessarily good for everyone. Some people get tummy trouble, heartburn, diarrhea, and gas because of it, and it may affect how some medications work. So talk to your doctor, and use it with care.