Andrew Zheng MD

Recommended Articles

• 6 Reasons Why You Are Coughing Up Green Mucus

  IntroductionMucus is a moist film, which helps keep your nose from drying out and protect your lungs from foreign substances, such as bacteria, viruses, dust, and other harmful intruders. It keeps you healthy but you may only notice it whenever you are sick. Mucus becomes thicker when you are sick,...

• Treatment for Meningitis

  The severity of meningitis varies from one person to another. In common cases, medications can help solve the problem and the person may recover within 1 to 3 weeks. But in cases where there is a risk of the infection spreading to the meninges, hospitalization and other confirmation tests might be...

• What Do Head Lice Eggs Look Like?

  Lice lay their eggs called nits, which are placed on the hair shaft. Nits look more like dandruff but they cannot simply be shaken out of the hair like dandruff. To get rid of lice eggs, you have to follow certain steps and make sure that their eggs or nits are completely removed from the...

• Treatments for Conjunctivitis

  Conjunctivitis or "pinkeye" is an infection of the conjunctiva, the thin, clear membrane coating the white of the eye and lining the inside of the eyelid. The symptoms may vary slightly depending on the cause, but are distinct: redness of the white part of the eye, tearing, a thick yellow discharge...

• 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 Testicular Cancer?

  Cancer is an unhealthy condition in which the cells of a part of the body rapidly divide and thrive without an apparent cause. These abnormally growing germ cells clump together, forming a buildup of tissue called a tumor that sets it apart from normal healthy tissue. When this happens in the...