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In the nasal cavities, these inflammatory mediators cause inflammation and swelling of the tissue, as well as increased mucus production. Particulate matter in polluted air and chemicals such as chlorine and detergents, which can normally be tolerated, can make the condition considerably worse.
Nasal sebum. Nasal sebum, also known as nose grease/oil, is grease removed from the surface of the human nose.The pores of the lateral creases (where the nose joins the face) of the exterior of the nose create and store more oil and grease than pores elsewhere on the human body, forming a readily available source of small quantities of grease or oil.
A naked eye exam of the sputum can be done at home by a patient in order to note the various colors (see below). Any hint of yellow or green color suggests an airway infection (but does not indicate the type of organism causing it). Such color hints are best detected when the sputum is viewed on a very white background such as white paper, a ...
Yellow or green: Indicates an infection often by a virus or bacteria. The color is caused by an enzyme produced by the white blood cells combating the infection. Clear: Indicates allergies. Mucous membranes produce histamines and make more phlegm. Red: Indicates dry air. A nasal spray can be used to
The fluid from the nose is usually clear. [2] Symptom onset is often within minutes following allergen exposure, and can affect sleep and the ability to work or study. [ 2 ] [ 9 ] Some people may develop symptoms only during specific times of the year, often as a result of pollen exposure. [ 3 ]
Impetigo is a contagious bacterial infection that involves the superficial skin. [2] The most common presentation is yellowish crusts on the face, arms, or legs. [2] Less commonly there may be large blisters which affect the groin or armpits. [2]
The skin weighs an average of four kilograms, covers an area of two square metres, and is made of three distinct layers: the epidermis, dermis, and subcutaneous tissue. [1] The two main types of human skin are: glabrous skin, the hairless skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin. [3]
The nasal skin then thickens and hypervascularises, leading to persistent erythema (vascular rosacea). Papules and pustules then develop, marking the beginning of acne (inflammatory) rosacea. A subset of those affected by acne rosacea go on to develop rhinophyma. Chronic infection is common as the thickened sebaceous fluid traps bacteria. [2]