Dr. David Chih-yuh Shieh MD

Influenza Influenza, also commonly called as the flu, is a highly contagious respiratory infection caused by viruses, particularly influenza A or influenza B. These viruses usually infect the throat, nose, and lungs. Although the flu causes mild symptoms in most people, it can also cause severe...

The swelling of the feet, legs, and ankles is also known as peripheral edema. This refers to a condition where there is an excessive accumulation of fluid in these parts of the body. It is not a painful condition unless the underlying cause for it is an injury to that area. However, it is a very...

Croup in AdultsAlthough croup is commonly observed in children who are 6 months to 3 years old, it is also possible for adults to get the infection in rare cases. Croup is a viral respiratory infection caused by human parainfluenza viruses (HPIVs). However, other causes of croup may include...

Many people who try to lose weight insist on a healthy, balanced diet to shed the pounds they want to lose. Sugar substitutes and artificial sweeteners are a common ingredient in the diet that enables the individual to substitute sugar with these products to help with an effective weight loss. Sugar...

There are several types of pneumonia that vary in their degree of seriousness. Pneumonia caused by a viral infection can make people feel very sick with fever, cough, and tiredness. However, viral pneumonia tends to go away on its own after some time. A "walking pneumonia" is a mild case of...

The menstrual cycle normally happens every month with a series of monthly changes that occur in a woman’s body in preparation for the chance of pregnancy. Every month, women go through the process of ovulation, wherein one ovary releases an egg. When the egg is not fertilized, the uterine lining...