Dr. John Chung MD

Recommended Articles

• What Is Nicotine?

  IntroductionNicotine is an alkaloid stimulant that comes from the nightshade family of plants, particularly from the leaves of tobacco. The type of nicotine found in tobacco plants is called Nicotiana tabacum. Nicotine can also be synthetically produced. Thousands of chemicals are contained in...

• What Are the Signs and Symptoms of Sinusitis?

  Sinusitis occurs because of the infection of the sinuses or cavities of the nasal passage, causing an inflammation and swelling of the tissue lining them. The usual cause is a virus, and the infection persists even when the upper respiratory symptoms have disappeared. Bacteria or fungi can also...

• What Is Dysuria?

  Introduction Dysuria is the medical term used to describe painful or difficult urination. The discomfort is usually characterized by a burning sensation. Most individuals who complain of painful or burning urination have a urinary tract infection. There are many health conditions that can cause...

• Is Mumps Preventable?

  Mumps is a highly contagious infection caused by a certain virus. It can easily be spread from one person to another; therefore, prevention is very important. The MMR vaccine is the surest way to prevent mumps. Common symptoms associated with mumps include painful inflammation on the cheeks or...

• Conjunctivitis: When to See an Ophthalmologist and What to Expect

  Our eyes are our windows to the world, and we each get only a single pair in our lifetime. Life without our sense of sight can spell great difficulty. Imagine being born and living with good vision for decades, only to have it impaired by some disease we could have prevented or gotten treatment for....

• What Are the Risk Factors for Lung Cancer?

  A risk factor could be any one of numerous influences that make you prone to developing cancer. There are unavoidable factors that you have no protection against. Some of these are a family history of genetically inherited traits, and age and gender issues. There are wholly avoidable factors such...