Dr. Patrick K Kwan M. D.

Dengue fever is a viral disease that owes its origin to and is transmitted by the Aedes aegypti mosquito, the same insect that is also responsible for spreading Chikungunya, Zika fever, and Yellow fever, among other life-threatening diseases. Originally, Dengue fever was confined to tropical and...

Allergy is a reaction caused by our body’s immune system in defense to an external stimuli which the body sees as a potential danger. The main function of the immune system is to protect the body from harmful viruses and infection by producing certain antibodies. An allergic reaction is known to...

Restless legs syndrome is usually treated with lifestyle changes as well as medication. RLS causes people to experience unusual sensations in the legs while resting. These sensations can come in the form of:• Creepy-crawling feeling• Burning• Throbbing • PullingThese unpleasant feelings...

Lymph nodes help the body identify and fight infections, germs and other foreign substances. It is very typical for the lymph nodes to swell when the body is invaded by micro-organisms. Swelling is the lymph nodes trying to produce more white blood cells to continue battling foreign substances. It...

What is rubella?Rubella is a contagious viral disease that is characterized by red rashes on the skin. The condition is also called German measles, although it is not caused by the virus that causes measles. Aside from a widespread skin rash, individuals who have rubella also have swollen lymph...

Rheumatoid arthritis is a chronic autoimmune disorder. Our own immune system attacks our body and destroys bony tissue in the joints. Sometimes, other body parts are also affected, like skin, eyes, blood vessels, lungs, or heart, but mostly the joints are the ones which are mostly affected. It...