Flu and cold season in the United States usually peaks in January or February, according to the Centers for Disease Control and Prevention. The common cold and the flu are both contagious respiratory illnesses, but the flu is potentially more dangerous. Coughs, sore throat, runny nose and fatigue are symptoms common to both. Certain supplements may help prevent flu and colds as well as ease their symptoms. However, if you have respiratory symptoms that are persistent or severe, consult your physician.
Echinacea
Echinacea is a member of the daisy family. It is frequently used to combat colds, flu and other infections. According to an article in the journal Seminars in Integrative Medicine, scientific evidence indicates that echinacea is beneficial in reducing the duration of colds and flu. Author Adriane Fugh-Berman of the Georgetown University School of Medicine says that echinacea appears to work by stimulating phagocytosis, a process used by the body to remove harmful bacteria. Echinacea's most common side effect is an unpleasant taste in the mouth. It has also been associated with allergic reactions in people who are susceptible. Consult a qualified health-care professional before using this herb for colds, flu or any other condition.
Astragalus
Astragalus is an adaptogen, an herb that raises the body's resistance to physical, mental and emotional stress. The University of Maryland Medical Center states that astragalus can be used to support and protect the immune system and to ward off colds and respiratory infections. Astragalus, an herb native to China, Mongolia and Korea, has antiviral, anti-inflammatory and antioxidant properties. It has been used in traditional Chinese medicine for centuries. The University of Maryland Medical Center says that while it is generally safe, astragalus may interact with medicines used to suppress the immune system. Consult a qualified health-care provider about its use.
Garlic
According to the University of Maryland Medical Center, several research studies suggest that garlic may boost the immune system and help prevent respiratory infections such as cold and flu. Garlic has been used both for culinary purposes and as a medicinal herb since antiquity. Garlic is a potent source of antioxidants, substances that help protect the cells from damaging free radicals. While whole garlic cloves may be used as a food supplement, it is also available in tincture, extract and tablet form. While it is generally considered safe to use, garlic may interfere with the action of certain prescription medications.
References
- "Seminars in Integrative Medicine"; Echinacea for the Prevention and Treatment of Upper Respiratory Infections; A. Fugh-Berman; June 2003
- University of Maryland Medical Center: Astragalus
- University of Maryland Medical Center: Garlic
- University of Maryland Medical Center: Influenza
- Centers for Disease Control and Prevention: The Flu Season
- Centers for Disease Control and Prevention: Flu Symptoms and Severity
