Dr. Allen F. Marshall M.D.

Tinnitus refers to the ringing sensation in the ears. For some it is felt like a buzzing or whistling sound that troubles them at night. Tinnitus is actually very common and affects about one in five people. The disturbance may be continuous or periodic in nature. The noise varies in intensity and...

In a thyroid biopsy, a small tissue sample of your thyroid gland is removed and then examined under a microscope to test for an infection, cancer cells, and other thyroid disorders. The thyroid is a small gland located in lower part of the neck, just below the larynx. The gland's main function is...

Vertigo is a symptom of many diseases. It is a condition where a person feels as though he or she is spinning or their surrounding is spinning. Vertigo occurs as a result of disorders in the inner ear. The causes of vertigo may be divided into peripheral and central problems.Peripheral disorders...

Types of VertigoWhen the world seems as though it is spinning, without cause, it is time to check with a doctor. There are two common forms of vertigo; central and peripheral....

Sleep apnea is a sleep breathing disorder. It is characterized by repetitive pauses in breathing, which may occur several times per hour and may last for 10 seconds. It is usually a chronic condition. It results in poor sleep quality and excessive sleepiness in daytime. The most common type is...

A sinus infection can be caused by bacteria, virus, or fungi. Some of the symptoms of a sinus infection are congestion in the nasal passages, headaches, fever, and cough. It is always advisable to consult a physician if you are experiencing any of these symptoms. However, there are some natural...