Hives

Hives

Hives are an allergic skin reaction causing localized redness, swelling, and itching.

Hives are a reaction of the body’s immune system that causes areas of the skin to swell, itch, and become reddened. (The affected areas are called wheals.) When the reaction is limited to small areas of the skin, it is called urticaria. Involvement of larger areas, such as whole sections of a limb, is called angioedema.

Causes and symptoms

Causes

Hives are an allergic reaction. The body’s immune system is normally responsible for protection from foreign invaders. When it becomes sensitized to normally harmless substances, the resulting reaction is called an allergy. An attack of hives is set off when such a substance, called an allergen, is ingested, inhaled, or otherwise contacted.

It interacts with immune cells called mast cells, which reside in the skin, airways, and digestive system. When mast cells encounter an allergen, they release histamine and other chemicals, both locally and into the bloodstream.

Impetigo

Impetigo

Impetigo is a contagious bacterial infection of the skin. It primarily afflicts children and the elderly. Ecthyma is a more severe form of impetigo with sores affecting a deeper layer of the skin. It often leaves scarring and discoloration of the skin.

The first sign of impetigo is a clear, fluid-filled bump, called a vesicle, which appears on the skin. The vesicle soon dries out and develops a scab-like, honey-colored crust, which breaks open and leaks fluid. These vesicles usually appear grouped closely together, and they may spread out and cover a large area of the skin.

Impetigo often affects the area around the nose and mouth; however, it can spread to anywhere on the skin, but especially the arms and legs, as well as the diaper areas of infants. The condition called ecthyma is a form of impetigo in which the sores that develop are larger, filled with pus, and covered with brownish-black scabs that may lead to scarring. Impetigo infections most commonly occur during warmer weather.

Lice infestation

Lice

A lice infestation, or pediculosis, is caused by parasites living on human skin. Lice are tiny, wingless insects with sucking mouthparts that feed on human blood and lay eggs on body hair or in clothing. Lice bites can cause intense itching.

There are three related species of human lice that live on different parts of the body:

• Head lice, Pediculus humanus capitis
• Body lice, Pediculosis humanus corpus
• Pubic lice, Phthirus pubis, commonly called “crab” lice

Pediculosis capitis is an infestation of head lice. A body lice infestation is called pediculosis corporis. Pediculosis palpebrarum or Phthiriasis palpebrarum, caused by crab lice, is an infestation of the eyebrows and eyelashes.

Pityriasis rosea

Pityriasis rosea

Pityriasis rosea is a skin disease of uncertain origin characterized by lesions bordered by collar-like areas that tend to peel off in tiny scales. Pityriasis comes from the Greek word for bran, pityron, because the flakes of skin shed from the lesions resemble small pieces of wheat bran. Rosea comes from a Latin word that means “rose-colored” or “pink.”

Description

Pityriasis rosea is a common benign skin disease, or exanthem, that was first described by a French physician named Camille Gibert in 1860.

It is classified as a papulosquamous disorder, which means that its lesions are marked by small raised areas (papules) as well as scaly areas. Pityriasis rosea begins in 60%–90% of patients with a pinkish-brown or salmon-colored herald patch sometimes called a mother patch—on the chest, back, or neck.

Rosacea

Rosacea

Rosacea is a skin disease typically appearing in persons during their 30s and 40s. It is marked by redness (erythema) of the face, flushing of the skin, and the presence of hard pimples (papules) or pus-filled pimples (pustules) as well as small, visible spider-like veins called telangiectasia.

In later stages of the disease, the face may swell and the nose may take on a bulbous appearance, a condition called rhinophyma.

Rosacea produces redness and flushing of the skin, as well as pustules and papules. Areas of the face, including the nose, cheeks, forehead, and chin, are the primary sites, but some persons experience symptoms on their necks, backs, scalp, arms, and legs. It is a common disease that afflicts one out of every 20 Americans.

Scabies

Scabies

Scabies, also known as sarcoptic acariasis, is a contagious, parasitic skin infection caused by a tiny mite (sarcoptes scabiei).

Scabies is caused by a tiny, 0.3 mm-long, parasitic insect called a mite. When a human comes into contact with the female mite, the mite burrows under the skin, laying eggs along the lines of its burrow.

These eggs hatch, and the resulting offspring rise to the surface of the skin; mate; and repeat the cycle either within the skin of the original host; or within the skin of its next victim, causing red lesions.

Scarlet fever

Scarlet fever

Scarlet fever is an infection caused by a streptococcus bacterium. It can be transmitted through the air or by physical contact and primarily affects children between four and eight years of age. In temperate climates, scarlet fever is most common during the late fall, winter, and early spring.

Scarlet fever is characterized by a sore throat,a fever of 103–104°F (39.4–40°C), and a sandpaper-like rash on reddened skin.

If scarlet fever is untreated, such serious complications can develop; as rheumatic fever (a heart disease) or kidney inflammation (glomerulonephritis).

Skin cancer

Skin cancer

Skin cancer is a malignant growth of the external surface or epithelial layer of the skin.

Skin cancer is the growth of abnormal cells capable of invading and destroying other associated skin cells. Skin cancer is often subdivided into either melanoma or non-melanoma. Melanoma is a dark-pigmented, usually malignant, tumor arising from a skin cell capable of making the pigment melanin (a melanocyte).

Melanoma can spread throughout the body via the bloodstream or lymphatic system. Non-melanoma skin cancer most often originates from the external skin surface as a squamous cell carcinoma or a basal cell carcinoma.

Acne Foods For Prevention

Acne Foods For Prevention

Most of the people know about some of the things that have a propensity to cause acne such as greasy pizza, burgers or chocolate, but there are basically foods that may forestall acne, too.

Acne foods can help an issue the majority have handled since they were youths. We all hope it will go away once we get past the last of the teenage years, but when we hit 20 it feels like it still plagues plenty of us.

While there are a number of different reasons why it has effects on folk the way it does, there also are a range of ways to prevent acne thru food and / or diet. There are acne foods that you can make a habit of eating to stop or reduce the flare-up of acne.