Dr. Ray C. Chang M.D.

Doctors or physicians are categorized according to different factors including medical specialties and subspecialties. Most doctors specialize in a specific area of medicine. This article provides a summary of the different types of doctors in the medical field. AllergistsAllergists are also...

Chronic sinusitis is an illness that causes inflammation in the nose and sinuses, which lasts for more than three months. Aside from these two symptoms, people with chronic sinusitis may have pus and polyps in their nose. An otolaryngologist is a medical specialist that specializes in the...

Laryngitis is the inflammation of voice cords in the voice box, in other words, it is the inflammation of the larynx. A larynx is an organ that resembles a tube and is located in the trachea (windpipe). The Adam’s apple is the protrusion of the larynx in the throat.Laryngitis is the swelling of...

The inflammation of the sinuses and nasal membranes is what is referred to as sinusitis. The sinuses are the openings located in the facial bones that are linked to nasal openings. Mucous membranes that surround the sinuses are the same as those found in the interior of the nose. You probably have...

A migraine is one of the most severe headaches, and the pain often affects an individual's daily activities. A migraine headache is broadly classified into migraine without aura and migraine with aura. Migraine with aura is a less common type of headache when compared to the other migraine. Aura is...

Introduction The salivary glands produce saliva, which keeps the mouth moist, helps digest the food, and prevents the rapid decay of our teeth. The salivary glands are small in size and are located around the inner lining of the mouth, cheeks, and lips. Many diseases from cancerous tumors to...