Anna Chon M.D.

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• What Is Vistaril Used For?

  What is Vistaril (hydroxyzine)?Vistaril is a medication used to reduce central nervous system activity. It is an antihistamine drug that can help reduce the effects of histamine in the body and relieve symptoms of allergy, such as histamine-induced itch, hives, and contact dermatitis.Vistaril is...

• How Long Can Sperm Live?

  Introduction An average man ejaculates 1/2 teaspoon to 1 teaspoon of semen. This small amount of semen contains millions of sperm cells. It only takes one sperm to fertilize an egg, but each sperm has a limited life span, which begins once it leaves a man's body.For a couple trying to have a baby,...

• The Four Stages of Hemorrhoids

  Although sometimes embarrassing, hemorrhoids are quite common. Statistics indicate that one in every two people has had hemorrhoids at least once in their lifetime. Both men and women are affected by hemorrhoids.There are two types of hemorrhoids; internal and external. Internal hemorrhoids, as the...

• Syphilis: How Does It Affect Men and Women?

  Syphilis is a sexually transmitted disease that affects both men and women. The most common locations for the chancre to appear are in the penis, vagina, anus, and even in the oral cavity. There is not much difference in men and women as far as symptoms, diagnosis, and treatments are concerned....

• Why Do Some Vaccines Have to Be Injected Twice?

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• Can Arthritis Cause Back Pain?

  Yes. Arthritis is one of the major causes of back pain and can cause long-term effects in an individual. Back pain is a common problem which affects 4 out of 5 of us at some point. Back pain is a type of pain experienced mostly through the spine. Back pain can last for a short time, but there are...