Why there is a rash on the foot in the form of red dots

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When a rash appears on the legs in the form of red dots in an adult, the nature of the rashes should be analyzed.

It is the study of the properties of papules, blisters, pustules and other formations on the skin that allows specialists in most cases to correctly establish the cause, and to diagnose a possible disease.

In adults, the most frequent manifestations of the rash are:

1. Maculae or simply the spots are the elements of rashes that are flush with the skin and do not rise above the surface.
2. Blisters protrude above the skin level. They have a rough surface and dense internal liquid contents.
3. Papules look like nodules in appearance, they are in the thickness of the skin - it is a single neoplasm that does not have an internal cavity, the size of which varies from the head of the pin to the grain of the lentil.
4. Bubbles are cavities with a transparent internal content. When pus is formed inside the bladder, it is called a pustule, that is, a purulent bladder.
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5. Erythema is a part of the skin that rises above the rest. It is characterized by sharply outlined edges. Such cosmetic skin defects are usually red and appear in people who are prone to allergies of various origins, for example, food for red berries, fruits and eggs, or medicamentous
6. . Erosions and sores are elements that differ in size. They appear on the site of damaged skin that undergo inflammatory or traumatic changes.
7. Crusts - appear on the site of blisters, ulcers, pustules and erosion. Formation of crusts is a sign of the onset of the process of recovery.

The formation of a small red rash on the lower limbs can indicate any pathology of the skin or be a sign of the development of pathology in the body.

Causes of a red rash on the legs in an adult

Almost all disorders occurring in the body can manifest as rashes, including red small rash on the legs.

Below - only the most common causes:

• The most common rash on the legs and hands is a sign of allergic contact dermatitis.
• Exposure to external mechanical factors( use of tight or uncomfortable shoes, which leads to redness and rubbing of the legs, depilation).
• Calling up a rash on the legs in the form of red dots may scabies.
• When infectious endocarditis appears hemorrhagic rash.
• Reaction to a bite, of any insect.
• Autoimmune diseases( scleroderma, lupus erythematosus);
• Viral infection( rubella, chicken pox, scarlet fever, measles).
• If the rash appears in the area of ​​the foot and it itches badly, then most likely it is a fungal disease.
• Urticaria, neurodermatitis, eczema, soft fibroid.

Less common causes:

• syphilis;
• hemorrhagic fever;
• Crohn's disease;
• decompression sickness;
• HIV, AIDS;
• myocarditis;
• toxic shock syndrome;
• acute lymphoblastic leukemia;
• autoimmune hepatitis;
• bacterial endocarditis;
• meningococcal infection;
• diabetes;
• California encephalitis;
• primary disorders of the toxoid deficiency;
• toxemia;
• type 2 diabetes.

Often, rashes appear both on the hands and on the legs due to physical impact, for example, after small scratches, biting of insects or because of improperly selected material and clothing style.

Allergic contact dermatitis

It is characterized by the following symptoms:

• swelling and redness of a specific area of ​​the skin;
• pronounced itching sensations;
• formation of transparent vesicles with liquid exudate;
• the appearance of painful erosions at the site of the bursting bladder;
• appearance of yellow crusts after the inflammation subsides.

The development of the disease begins with the area that has come into contact with the irritant.

Scabies

The most common symptom of scabies is itching, which always tends to dramatically increase at night. In addition, itching can be worse after taking a shower, especially hot.

The second characteristic manifestation of scabies, among all the symptoms is the appearance on the skin of a specific rash that resembles strips up to 15 mm long, with a small bubble at the end. This is the itch moves.

Foot Fungus

Despite the fact that fungi that cause skin lesions on the feet, there are a great many, the symptoms of the foot fungus, in most cases, are the same:

• appearance of skin scales on the foot;
• is a symptom of increased sweating of the feet;
• severe itching at the site of fungal attack;
• appearance of painful cracks;
• severe exfoliation;
• involvement of nails in the pathological process;
• appearance of unpleasant odor.

Over time, the fungus spreads on the foot, first of all, hitting the areas where the maximum load is required.

Treatment of rash on the legs in the form of red dots

After identifying the cause of the rash, the doctor will prescribe a treatment corresponding to the detected disease. Of course, there can not be general recipes here, because different pathologies leading to the appearance of a rash require completely different therapies. In addition, local remedies in the form of ointments, creams, gels can be prescribed to eliminate the itching, to alleviate the patient's condition.

If a small red rash on the legs of an adult is due to an allergic reaction, then first of all it is necessary to eliminate the allergen, if necessary, take antihistamines.