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Malar rash is a skin infection. It affects people of all ages. It results in blisters or reddish bumps. These blisters cause itchiness and prickly feeling. Children are more prone to such rash especially during the hot climate. Malar rash is also termed as prickly heat rash or miliaria.

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Malar rash occurs due to obstruction of sweat glands. This in turn traps the perspiration below the skin which leads to rashes that are in the form of blisters or bumps. But there is nothing to worry.Mild cases can be treated easily at home. However, it is necessary that the person suffering from malar rash should take precautionary steps to cure it, such as staying indoors in cool environment, and by wearing loose clothing.This will avoid accumulation of perspiration.  Medical help is advised to treat severe cases of malar rash.

Symptoms of Malar rash

Malar rash affects several areas of the body. The rashes easily form in those parts with skin folds, and where the skin constantly rubs against the clothes. In children, malar rash occurs on the shoulders, neck and chest. Sometimes in uncommon cases,the rashes may occur in groin, armpits, or elbow folds. There are 3 forms of malar rash, each with unique symptoms. They are as follows:

Miliaria crystalline:

  • Miliaria crystalline is the mildest form of malar rash. The sweat ducts that are in the uppermost part of skin get affected by this sort of rash.
  • Tiny, visible blisters are formed. Sometimes,the rash may also lead to formation of small lumps that crack or burst easily.These rashes do not cause any itchy feeling or pain; and the rashes disappear on its own without any medications or treatment. But care has to be taken because it may occur again during hot season.
  • In comparison to adults newborns have a higher chance of developing this kind of malar rash.

Miliaria rubra:

  • Miliaria rubra affects the outer part of the skin which is the epidermis and occurs deep in the skin. Usually adults who are in hospital and are recommended bed rest, as also those who are prone to excess exposure to sunlight suffer from these rashes. It can also affects newborns in the first or third week.
  • It may cause itchy and prickly sensations.
  • The affected area may show decrease in perspiration or may not sweat.
  • Red colored bumps may appear on the affected area.

Miliaria profunda:

  • It is a rareform of malar rash.  It usually affects those who have consistently suffered from miliaria rubra. Miliaria profunda affects the sweat ducts deep inside the skin. Rigorous exercises or active physical activities lead tomore perspiration, which increases the chances of developing this type of malar rash.
  • Lesions may appear like that of goose bumps. They are skin colored and tight.
  • Reduced sweating may also cause heatstroke. A few accompanying symptoms include increase in blood pressure, dizzy and nauseated feeling, increasing heartbeat and headache.

Causes of Malar rash

Malar rash is caused due to the blocking of the sweat glands. These glands or ducts are on and under the skin. When these sweat ducts are obstructed, it traps the sweat. This causes swelling of skin, itchiness and development of malar rash. Due to this,blisterswhich are sometimes filled with fluid, and reddish bumps develop, eventually causing irritation.

The sweat ducts can get blocked due to many reasons. Some of them are as follows:

  • Infants have less developed sweat ducts which are prone to easy bursting. A damaged sweat duct traps the perspiration under the skin. The damage could be for the reason that the infant is heavily clothed, kept in incubator, has a high body temperature, or has been exposed to hot environment.
  • Rigorous exercise or activities leads to clogging of sweat ducts causing development of malar rash.
  • Excess application of ointment or cream may also block the sweat ducts.
  • Skin fitted and tight clothes, as well as certain types of non-porous fabric can also stop sweating causing malar rash.

Treatment of Malar rash

Malar rash varies from person to person. It could be mild or severe. Still it can be treated quickly if some given measures are taken. Also in severe cases a dermatologist should be consulted. Malar rash can be treated as follows:

  • Mild cases of malar rash can be easily cured by few precautionary measures, such as wearing loose clothes, avoiding outdoor activities, staying in cool environments, and limiting rigorous activities. This will keep the body temperature cool and stop the excess perspiration.
  • Moderate cases of malar rash can be treated easily with the use of topical drugs. These drugs minimize itchy feeling and stop the blockage of sweat ducts.
  • Topical steroids have to be taken to cure severe cases of malar rash.
  • Precautionary steps have to be taken by all who suffer from moderate or severe cases of malar rash as shown above.

Malar Rash Pictures

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