Dr. Francis Eugenia Marrero M.D.

Uncontrollable shivering is characterized by the rapid shifting between muscle relaxation and contraction. It is through these contractions that the body warms itself up when exposed to cold. Shivering is not always accompanied by fever. In some cases, shivering may occur before the onset of...

What Is Chronic Sinusitis?This condition is also referred to as chronic rhinosinusitis. It affects the sinuses within the nose causing them to become inflamed and swollen. Sinuses are spaces within the eyes and nose that contain air. The sinuses get blocked and this allows the mucus to accumulate....

A cryotherapy chamber resembles a huge aluminium canister in which the person enters through a door. The whole session is done in about 2 to 3 minutes while the individual is standing. It is not advisable to stay in the chamber for longer three or so minutes. The chamber reaches your neck level, so...

Hemorrhoids are inflamed and swollen veins in the rectum, which is the last section of the digestive system. They can also occur at the opening of the anus. The veins in the lower rectum and anus tend to swell under pressure, which is basically what causes hemorrhoids. They cause severe pain in the...

Close speculation of blood drops under a very high powered microscope can reveal outstanding discoveries. It was the first reason why penicillin might have been discovered and named after close identification tests. Anemic patients can be deemed as people who suffer from something which can make...

What is dysuria?Dysuria is the medical term for painful urination or a burning sensation, discomfort, or difficulty when passing urine. In most cases, dysuria is a symptom of another medical condition. Males and females of any age can experience dysuria. However, this symptom is more common in...