Dr. Richard Alan Yamamoto M.D.

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• Causes, Treatment, and Prevention of Petechiae

  Petechiae are tiny dots that appear as red, brown, or purple in color beneath the skin. They are usually seen in clusters on the stomach, buttocks, arms, and legs. However, they may also appear inside the mouth or on the eyelids. Petechiae may indicate different conditions, which can range from...

• Ringworm of the Body and Scalp

  IntroductionDermatophytes are fungi that get nutrients from keratin for growth. They usually affect the skin, nails, and hair. The species that commonly invade the keratin are those that belong to the genus Trichophyton, Epidermophyton, and Microsporum. Fungal infections produce ring-like...

• What Is Molluscum Contagiosum?

  Molloscum contagiosum is a viral infection that presents wart-like bumps or small growths on the skin. Usually, these growths are pink, white, or skin-colored. They are smooth, shiny, and pearly looking. The center of these growths is indented like a dimple.This infection is very common among kids...

• What Is Chronic Urticaria?

  IntroductionUrticaria is also known as hives, which are itchy and red welts that can be triggered by certain situations or substances. These welts may vary in sizes. They tend to repeatedly appear and fade away as the skin reaction runs its course. Each of these welts is said to characteristically...

• A New Treatment for Dandruff

  Getting to the root of dandruffComplete treatment of dandruff has been an elusive dream for many people. Over-the-counter shampoos and scalp treatments are the most common approach for controlling dandruff. “But these methods are beneficial for those who have mild forms of dandruff and not severe...

• Herpes Simplex Virus: The Cause of Cold Sores

  Herpes simplex is a retrovirus that infects humans. The virus is passed from one person to another through direct physical contact or contact with anything that has come in contact with saliva or other body fluids of an infected person.Once the virus enters the body, it has a clever mechanism to...