Dr. Douglas R. Dehaan MD

IntroductionChronic sinusitis is the inflammation of the sinuses that tend to persist for 12 weeks or more, despite treatment attempts. Another term for chronic sinusitis is chronic rhinosinusitis, which causes mucus buildup due to an impaired drainage of the sinuses. People with chronic sinusitis...

Gastroenteritis is an intestinal infection that is caused by poorly prepared foods, contaminated water, etc. It can cause diarrhea, nausea, headache, and vomiting.What causes it?Gastro is caused by viruses. They include:• Rotavirus• AdenovirusHow is the gastroenteritis virus passed?Children can...

A pinworm infection is a parasitic infection of the intestines, mostly affecting children. Pinworms can cause great discomfort in children since the infection comes with itching and irritation in the perianal region. This parasitic infection can spread from one child to another. Even adolescents...

What is mono?Mono is the short form of the disease called infectious mononucleosis. It is also popularly called as the "kissing disease". It is a very common disease, typically caused by the Epstein-Barr virus (EBV). It leads to extreme tiredness and feelings of weakness for several weeks or...

Pleurisy: What Is It?Pleurisy or pleuritis is the inflammation of the membranes that line your lungs and the inside of your chest wall. The pleura are made of two layers – the visceral pleura and the parietal pleura. The visceral pleura line your lungs, and the parietal pleura line the inside of...

Feeling your hands and feet going numb is a very normal condition that most of us experience at some point or the other. It is a feeling when one cannot feel any sensation in the affected parts of the body. In most cases, numbness or the feeling called ‘pins and needles’ occurs due to a...