Thermal urticaria in adults and children: treatment, drugs, symptoms
Thermal urticaria is one of the forms of anomalous susceptibility of the body to the action of thermal stimuli - the environment or objects with a high temperature, physical and emotional stresses or internal diseases that provoke pathological skin changes of the "immediate" type on fragments of the skin or throughout the body.This article will tell you in detail about the symptoms of the disease and the treatment of thermal urticaria in children and adults, about the best drugs from it, and also answer other questions.
Features of the disease
Skin pathology can occur already in the early years of life, for months giving recurrences and disappearing without a trace after the hormonal growth of the child.But sometimes the pathology drags on for decades.
In this type of allergy, the condition of young children should be monitored, since they have coexisting with the warmth urticaria in other cases of allergic manifestations.In this case, it is able to serve as a "catalyst" for the development of Quinc
In women suffering from menopause attacks, manifested in active sweating and "flashes" of heat, heat hives can exacerbate unpleasant symptoms, and vice versa - profuse sweat and even mild sweat on the skin of the chest, face, neck, combined with a rise in skin temperature andDilated vessels, are capable of provoking a rash of itchy skin blisters.Such stresses further aggravate the condition of the patient.
Thermal urticaria( photo)
Classification of thermal urticaria
Classification provides for the isolation of two forms of thermal urticaria in the disease:
- Holinergic generalized ( affecting the entire skin).
- Local , in which symptoms appear in areas that come into contact with an aggressive factor).
The first form is often considered separately.The second type refers to the manifestations of contact urticaria, which occurs in response to physical factors( heat, vibration, sun, cold, water, pressure, trauma).
- acute ( active) urticaria, the symptoms of which gradually disappear for 6 weeks, and
- chronic , lasting more than 45 days.
The thermal urticaria will be described in detail by this video:
Reasons for the occurrence of
The exact reasons for the development of this type of disease have not yet been established. But it is proved that the signs of any form( both local and cholinergic) are observed only with the already existing susceptibility of the allergy patient. The greater part( more than 97%) is defined as: asthma, dermatitis, insufficiency of specific products, Quincke's edema, neurodermatitis.
Specificity of the thermal form of the pathology is the relationship of manifestations on the skin with the release of not only histamine, as an immediate-type allergy regulator, but also the neurotransmitter acetylcholine.Therefore, it is believed that the disease is caused by three important factors:
- Excessive reaction of skin cells to acetylcholine.
- Abnormally high susceptibility of thermoregulation centers to the release of acetylcholine.
- Supersensitivity of the body to allergens.
Only a combination of these underlying causes can "give" a skin and systemic reaction to a change in the temperature of the skin or the whole body, as well as the external environment.
Conditions for the development of pathology
With local( local) form of thermal urticaria, acetylcholine is actively released when a certain temperature range is above 40ºC.Acetylcholine immediately stimulates the release of histamine, which causes redness, swelling and urticaria( "nettle") rashes in the form of blisters( like nettle-like burns).
For the cholinergic type, the manifestations of urticaria are characteristic after the body has been exposed to such factors as:
- muscular tension, which is accompanied by the release of sweat;
- hot( above 40C) water in the shower, bath;
- high ambient temperature in the sauna, sauna, with heat;
- temperature rise during infectious, inflammatory diseases;
- stressful loads, strong emotions;
- use of spicy, hot food, drinks that dilate blood vessels;
- available in the patient's illness, favorable for the development of a particular sensitivity to acetylcholine:
- vegetative dystonia, neuroses;
- disruptions in the endocrine system, including thyroid disease;
- disorders of the gastrointestinal system.
Types of thermal urticaria have similar symptoms and specific signs.
- Reveals itself within 5 to 20 minutes after exposure to a provocative factor( stress or load with sweat, hot water, high temperature).
- Small, itchy whitish vesicles 2 to 3 mm in diameter appear on the skin, surrounded by a bright pink puffiness area, which tend to merge, forming large red swollen areas that flatten above the skin.
- Rashes and blisters, as a rule, cover the skin of the neck, forearms, chest, face, but often affect the entire body.
- Itching with a typical development of the disease is quite intense, accompanied by a burning sensation.
- Skin rash is often accompanied by a general reaction of the nervous system to the release of acetylcholine in the form:
- nausea, salivation, vomiting;
- headache and cramping abdominal pain;
- liquid stool.
In most cases, when the provoking conditions are eliminated, the signs of a thermal allergy of the cholinergic type disappear within 30 to 90 minutes, but sometimes last up to several days.
The local form of thermal allergy is characterized by:
- Appear within 3 to 5 minutes at the site of heat exposure of flat pink blisters on the background of swollen skin, which in half the cases are not accompanied by itching.
- The preservation of changes on the skin is about 40 - 90 minutes.
Sometimes the symptomatology has a mild form with small, almost imperceptible vesicles, mild itching and mild redness.This leads to the fact that patients ignore the signs of the disease, late seeking medical help, and the illness turns into a chronic form.In addition, there are cases of a combination of heat and cold urticaria, which should be emphasized.
This kind of urticaria is not complicated for diagnosis with the use of provocative samples, that is special tests that induce a painful reaction on the skin.