How to distinguish an allergy from other disease?



There is a lot of manifestations of an allergy, and some of them are incredibly similar to symptoms of other diseases. How it is possible to define, what it is an allergy, but not something else? After all the choice of methods of treatment, success of the taken therapeutic measures often depends on the exact diagnosis.

How to distinguish an allergy from other disease?

How to distinguish a potnitsa from an allergy?

Potnitsa also, as well as an allergy is characterized by emergence of rashes on skin. But unlike an allergy they are shown in the form of the small pink spots not inclined to an inflammation.

Besides, the potnitsa and allergic rash differ in places of rashes. The allergy is shown most often on a face, a stomach, forearms. And the potnitsa practically does not happen on a face, she can arise on a neck, in axillary hollows, elbow bends, on a breast, a back. Rashes of a potnitsa cause feeling of burning and a pricking on skin, and allergic rash is always followed by an itch.

How to distinguish a rubella from an allergy?

The main difference is the increased lymph nodes at a rubella. Such phenomenon usually does not happen at an allergy. Rubella rash at first arises on a face, and only then extends on a body, and for an allergy emergence of rashes on all body is characteristic at once. The rubella is always followed by high temperature and passes quicker, than allergic reaction.

How to distinguish chicken pox from an allergy?

Chicken pox begins with that body temperature increases, there is a slackness. In a day there is a red rash which quickly expands, affecting a face, a breast, hands and all body. Then the quantity of blisters starts being reduced considerably every day. At an allergy if there is no treatment, and effect of allergen proceeds, the quantity of blisters will increase further.

How to distinguish itch from an allergy?

Both diseases are followed by emergence of the itching red spots on skin, but at itch the itch is felt mainly at night, and at an allergy – in the afternoon. If symptoms of an allergy can be removed protivogistaminny preparations, they do not affect itch in any way. Besides, at itch there is no dacryagogue and cold, and on skin it is possible to see the white strips left by a tick. Itch is very infectious that cannot be told about an allergy.

How to distinguish an allergy from cold?

If repetition of cold, dacryagogue, irritation in a throat, congestions of a nose and sneezing is observed under identical conditions, for example, during house cleaning, most likely, the person has an allergy. Also at an allergy, unlike cold, the general weakness, increased fatigue, intensive muscle pain and an ache should not disturb the person.

How to distinguish diathesis from an allergy?

Diathesis is an existence of predisposition to allergic reactions. It is shown more often at children and expressed by reddening of cheeks, their roughness, emergence of heat-spots. As a rule, it does not extend further on all organism, than and differs from an allergy.

How to distinguish a sting from an allergy?

Stings of animals and insects can leave various traces on skin of the person, but more often it is the small reddish points which are not expanding over time. Allergy spots quickly extend, merging with each other. Most often stings happen only on open parts of a body, and the allergy affects and the closed sites.

How to distinguish deprive from an allergy?

Deprive in most cases is caused by fungi or viruses. It is characterized by emergence of the shelled spots of pink color on a stomach, extremities, the head and genitals. Sometimes lymph nodes increase, and also temperature increases. At herpes rash has accurate outlines, and at an allergy – indistinct.

How to distinguish measles from an allergy?

At measles in the first day temperature which is followed by weakness, a headache, dry cough, a sore throat, hoarseness of a voice rises. In 3-4 days the face, a stomach and a neck of the patient become covered by the rash extending then on all body. Allergic rashes have no similar catarrhal period, and they do not cause sharp intoxication. Having accepted antiallergic preparations, it is possible to note positive dynamics quickly.

How to distinguish herpes from an allergy?

Herpes is the serious disease of virus character which is characterized by manifestations on mucous membranes and skin of the grouped watery inflamed bubbles. They cause strong burning of skin, an itch, can be followed by a fever and an indisposition. At the surrounding herpes temperature usually increases, there are headaches, lymph nodes increase. Very long neuralgic pains remain.

How to distinguish an intertrigo from an allergy?

The intertrigo is shown by the reddenings on skin which are gradually passing into typical gnoynichka, cracks and even ulcerations of skin if no medical measures are taken. Places of manifestations of an intertrigo are sites with skin folds: neck, inguinal, axillary, mezhjyagodichny area. At an allergy such reddenings appear not only on places of folds, but also on all stomach, buttocks, extremities.

How to distinguish a fungus from an allergy?

The fungus appears on hairy sites of a body, and also on fingers of hands and feet, nails. Thus at first there are noticeable reddenings with peelings which gradually extend. Skin in the middle starts being cleared, and such defeats in a type of rings look. At an allergy there is a typical red rash.

How to distinguish psoriasis from an allergy?

Psoriasis can be distinguished on emergence on skin of bright red plaques of various sizes and forms covered with silver-white scales. Places of rashes – elbows, knees, the head, lumbar and sacral area.

How to distinguish antritis from an allergy?

Both at an allergy, and at antritis the main symptom is cold. But at antritis of the patient disturb not only a congestion of a nose and greenish allocations, but also and a headache, some temperature increase and even tooth pain. And of course, the general fatigue is felt.

Author of article: Ponomarenko Andrey Aleksandrovich, the dermatologist, especially for the site ayzdorov.ru