Dr. Nancy Alston MD

Recommended Articles

• What Are the Signs and Symptoms of Sinusitis?

  Sinusitis occurs because of the infection of the sinuses or cavities of the nasal passage, causing an inflammation and swelling of the tissue lining them. The usual cause is a virus, and the infection persists even when the upper respiratory symptoms have disappeared. Bacteria or fungi can also...

• How is Lactose Intolerance Diagnosed?

  Lactose intolerance has gained a lot of prominence in recent years. The common symptoms of lactose intolerance like bloating, flatulence, discomfort, and diarrhea can often mimic the symptoms of many other medical conditions. There is often a tendency to self-diagnose when observing these symptoms....

• What Could Happen if My Pneumonia Remains Untreated?

  There are several types of pneumonia that vary in their degree of seriousness. Pneumonia caused by a viral infection can make people feel very sick with fever, cough, and tiredness. However, viral pneumonia tends to go away on its own after some time. A "walking pneumonia" is a mild case of...

• Different Blood Types and What They Mean

  The ABO (A, B, AB, or O) blood group system is used to classify different types of antibodies in the plasma and antigens in the red blood cells (RBCs). The ABO blood group and RhD antigen determine the type of blood that is a perfect match for blood transfusions. The four ABO blood groups are: ...

• What Is Asthma: Get the Facts

  Asthma is a lung condition where the lung bronchioles constrict and get filled with mucus, narrowing the passage for air to pass through. It is a non-curable condition. However, the symptoms can be suppressed with proper medication, exercise (as prescribed by the doctor, or else, doing inappropriate...

• What Is Dysentery?

  What does dysentery mean?It has happened to all of us - short stabbing pains in the stomach followed by a dash to the closest toilet. Diarrhea is easy to get because there are many factors that can upset our bowel movement functioning. However, not every diarrhea should be regarded as dysentery....