Eczema (dermatitis)
作者:mira mohamed
1. Dyshidrotic Eczema
1.1. Flares happen only on the hands and feet and usually begin with a rash of painful, deep-seated blisters called vesicles, although sometimes itching and burning sensations begin first. As blisters heal, the skin dries and often reddens and peels. This leaves it tender and dry and sometimes creates painful fissures or cracks. Skin can also become infected.
2. Contact Dermatitis
2.1. Irritant contact dermatitis
2.1.1. it happens when skin cells are damaged by exposure to irritating substances, such as solvents, detergents, soaps, bleach or nickel-containing jewelry. Makeup, hair dye, nickel-containing scissors, belt buckles or clothes with metal snaps or zippers can also trigger reactions — as can over-washing hands with hot water and soap and wearing scratchy wool.
2.1.2. common in mechanics, custodians, healthcare workers or hairstylists.
2.2. a delayed allergic reaction that appears as a rash a day or two after skin is exposed to an allergen. A common example is poison ivy. After exposure, the body generates a robust inflammatory reaction to the oils in the plant leading to an itchy rash within one to two days. Fragrances, nickel and the preservative thimerosal, which is found in some topical antibiotics, are also common causes of allergic contact dermatitis.
2.3. Allergic contact dermatitis
2.4. the symptoms
2.4.1. burning or blistering of the skin, and sleep disturbances
3. Seborrheic Dermatitis
3.1. chronic form of eczema, seborrheic ,appears on the body where there are a lot of (sebaceous) glands in the upper back, nose and scalp.
3.2. the symptoms
3.2.1. their scalps as scaly, greasy patches. They can also develop seborrheic dermatitis