Norovirus infection is a virus that causes acute gastroenteritis. It is the second most common reason behind diarrhea and vomiting. Norovirus is widespread in winter. Thus, it is also known as “winter vomiting bug” or “winter vomiting disease”.
Nummular eczema is a condition in which a coin-shaped lesion develops on the skin. It is a chronic condition also called nummular dermatitis or discoid eczema. The spots are itchy and well-defined. They may ooze clear fluid or grow dry and crusty. It develops after a skin injury such as a burn, abrasion, or an insect bite. The disorder might cause a single patch of coin-shaped lesions or many patches of coin-shaped lesions. The patches may last for months.
The optic nerve is very important for the normal vision of human eyes. Any inflammation or irritation in this nerve leads to a serious optical problem called optic neuritis. This condition might occur in one or both eyes due to diverse reasons.
Oral thrush is a condition of the mouth caused by a yeast or fungal infection. It is also known as oral candidiasis or oropharyngeal candidiasis. Oral thrush occurs when the fungus called Candida albicans accumulates inside your mouth. Candida is normally found inside the human mouth, but it needs treatment when it grows excessively to cause troubling symptoms.
Orchitis is an inflammation caused in one or both testicles. It can be the result of a bacterial infection. The mumps virus can also cause orchitis.
Orthostatic hypotension is a kind of low blood pressure that develops when you suddenly stand up or lie down. Orthostatic hypotension or postural hypotension is generally mild and lasts for a few minutes. It makes you dizzy, and you may even faint.
Osgood-Schlatter disease is responsible for knee pain in adolescents, especially those who play sport. Osgood-Schlatter disease is common in children who play the sport that involves running, jumping and swift changes of direction like basketball, soccer, ballet and figure skating.
A Poison ivy rash is an allergic reaction of the skin. The rash is not communicable. The allergy is caused by direct contact with an oily resin called urushiol. The oil is in the roots, stems and leaves of poison ivy, poison oak and poison sumac.
Usually, the reaction develops 12 to 48 hours after contact with the resin. It might last for 2-3 weeks. The rash usually takes the shape of the area of contact. However, it is most commonly seen as a straight-line rash, as the plant brushes in a straight line on the skin.
