Dermatology

Drug Allergies: Causes, Symptoms and Diagnosis

Undesirable reactions caused by drugs can be divided into two groups: allergic and non-allergic. These reactions differ in variety - from non-dangerous, rapidly disappearing, reddening of the skin to severe diseases, in which there is a threat to life. Most often there are undesirable reactions of skin, sweat, sebaceous glands, hair, nails. The most common reactions caused by drugs include urticaria, Lyell's syndrome or Stevens-Johnson syndrome (in which large blisters appear and the skin flakes), and exanthema, characterized by a lesion of the skin with a clearly delineated inflammatory focus. Exanthema occurs after prolonged use of the drug. Allergy to medicines can be very dangerous....

Skin Allergies: Contact Dermatitis Causes, Tests and Treatment

Allergic skin reactions are the increased sensitivity of skin cells as a result of external or internal stimuli. Such reactions of the body's immune system can manifest themselves in different ways - these are various reddening and rashes, reminiscent of measles, rubella, scarlet fever or so-called. Contact dermatitis. Allergic reactions are characterized by itchy skin. Symptoms Redness. Rashes that resemble measles, rubella. Itching of the skin. Causes Allergic skin reactions most often can not be distinguished from other allergies, for example, food allergies. Such a reaction can be caused by any food product. Meanwhile, allergic skin reactions include only rashes caused by...

Ateroma: Symptoms, Causes, Prevention

What is atheroma? This is a benign tumor of the skin in the form of a dense formation, usually painless, soldered to the skin, with clear contours. Such tumors are often called adipocytes, because they develop in the duct of the sebaceous gland. Most often, atheromas are localized in places where there are many sebaceous glands: near the ears, on the scalp, on the face, on the chest, on the back between the shoulder blades and in the groin area. These adolescents appear mainly in people aged 20-35 years, more often in men. Symptoms The skin appears bulging in size from 5 mm to 5 cm, usually round in shape, with sharp edges. The color of the tumor usually does not differ much from the...

Nail disorders and systemic disease: What the nails tell us

Nails, as well as hair, are derived from the skin. They are not equipped with either blood vessels or nerves, they consist of dead horny mass. The outer part of the nail is called the body, and its back part is called the root. The white section, located at the base of the body of the nail and having the shape of a crescent, is called a nail lunatic. The state of nails is heavily influenced by natural aging processes, as a result of which nails lose strength, become brittle. In addition, they may appear longitudinal grooves, sometimes resembling tiles. The most common nail disease is the paronychia. It is an infectious inflammation of the skin surrounding the nail plate on the finger of...

Diseases of subcutaneous adipose tissue

Diseases of the subcutaneous adipose tissue are diseases of the elastic connective tissue of the muscles, bones of the skeleton, as well as tissue that is located under the epidermis and dermis (actually the skin). Fatty tissue consists of fat cells, alternating with fibers of connective tissue, nerve fibers and lymphatic vessels. In the subcutaneous tissue are also blood vessels that feed the human skin. Fats are deposited in the subcutaneous fatty tissue of the human body. If fats get into surrounding tissues, then the chemical structure of the latter changes, which causes an inflammatory reaction with the appearance of dense nodules (the so-called granulomas). Due to the appearance of...