During an attack of chicken-pox, the patient develops life-long immunity, but the virus gets lodged in the nerves of the patient. If you are looking forward to Under eye filler near me raleigh nc
The virus remains donnant at these sites but when the immunity is low or if the patient is treated with immunosuppressive drugs, the virus trapped in the nerve gets activated and produces a disease called ‘herpes zoster’. The virus in these cases travels along the nerve and produces groups of vesicles in the skin area supplied by the nerve.
These groups of vesicles are therefore, strictly limited to one side of the body in a band-like distribution (segmental distribution). This eruption. is generally associated with severe pain, which may in some cases even precede the cutaneous eruption and be misdiagnosed as nerve pain or spine pain.
The vesicles are as a rule very tense and closely set over each other with a rim of redness around the vesicles. The vesicles however, as a rule dry up spontaneously within a week or 10 days and the pain also subsides in most of the cases, especially if the patient is less than 40 years in age.
Hives
Hives are basically pink or red bumps or slightly raised patches of skin. Sometimes, they have a pale center. Approximately 25% of the U.S. population will experience an episode of hives at least once in their lives. Hives usually itch, but they also can burn or sting. Hives are raised, often itchy, red welts on the surface of the skin. They are usually an allergic reaction to food or medicine. They range in size from a few millimeters to several inches in diameter. Hives can be round, or they can form rings or large patches. Wheals (welts), red lesions with a red “flare” at the borders, are one manifestation of hives. Hives can occur anywhere on the body, such as the trunk, arms, and legs.
Symptoms of Hives
The welts may be tiny or large, and may be all over the body or confined to one area.Ordinary hives flare up suddenly and usually for no specific reason. Welts appear, often in several places. They flare, itch , swell, and go away in a matter of minutes to hours, only to appear elsewhere. Wheals or welts come and go on the skin or mucous membranes. These may itch intensely, itch only a little, or not itch at all. Each typically has a whitish, raised patch of skin surrounded by a reddish halo. Some people have chronic hives that occur almost daily for months to years. The welts may enlarge, spread, and join together to form larger areas of flat, raised skin. They can also change shape, disappear, and reappear within minutes or hours. For these individuals, various circumstances or events, such as scratching, pressure or “nerves,” may aggravate their hives.
Itching
Swelling of the surface of the skin into red- or skin-colored welts (called wheals) with clearly defined edges.
Hives usually appear first on the covered areas of the skin such as the trunk and upper parts of the arms and legs.
The patches can be small or large. They are usually irregular in shape. Often, the patches have clearing of the redness in the center with a red halo or flare at the edges.
Like hives, the swelling of angioedema can go away on its own.
Causes of Hives
There are also a number of distinct physical causes of hives :
Cold urticaria – the most common of the physical causes. These hives are triggered by exposure to cold water or air . This would be a good excuse to avoid swimming in cold pools (something my kids love for me to do).
Dermatographia — hives that appear where the skin is firmly stroked. (Named because you can write on someone’s skin by raising welts where your finger traced). This occurs in about 5% of people (and many more if you repeatedly stroke hard enough).
Pressure urticaria — hives that appear under tightly fitting clothing or jewelry. Unlike dermatographia, which occurs in seconds, this can appear many hours later, obscuring the cause.
Cholinergic urticaria — hives that occur in response to heat, exercise, or emotional stress. This usually doesn’t begin before adolescence .
Aquagenic urticaria — hives that are triggered by contact with sweat or with water. In these people, exercise itself is not a trigger, and they can drink water without a problem.
Solar urticaria — a rare disorder in which sun exposure results in hives. Sunscreen can help!
Treatment of Hives
The treatment of hives depends on the severity of the symptoms. An injection or short course of a corticosteroid may be needed to rapidly reduce swelling and itching.
Try to stay calm.
If you can identify the cause of the reaction, prevent further exposure.
Take an antihistamine, such as 1-2 tablets or capsules of diphenhydramine (Benadryl), if you can swallow without difficulty. The liquid form of diphenhydramine (Benadryl) can also be used at 2-4 teaspoons (10-20 mL) per dose.
If you are wheezing or having difficulty breathing, use an inhaled bronchodilator, such as albuterol (Proventil), if one is available. These inhaled medications dilate the airway.
If you are feeling light-headed or faint, lie down and raise your legs higher than your head to help blood flow to your brain.
If you have been given an epinephrine kit, inject yourself as you have been instructed. The kit provides a premeasured dose of epinephrine, a prescription drug that rapidly reverses the most serious symptoms (see Follow-up ).
Bystanders should administer CPR to a person who becomes unconscious and stops breathing or does not have a pulse.
If at all possible, you or your companion should be prepared to tell medical personnel what medications you take and your allergy history.
Cool compresses or baths may help with the discomfort.
Avoid hot baths or showers.
Avoid direct sunlight.
Wear light, loose-fitting clothing.
Avoid strenuous activity or anything that might cause sweating
