There is a skin disease that comes and goes without a trace, and when it occurs, it may only appear localized rubella and itching within a few hours, and it will subside on its own within 24 hours, which is called "wind pimples" and medically called urticaria.
01 Urticaria is an allergic disease that is light and light, and heavy and heavy
The process of an allergic reaction is due to the activation of mast cells in the body, the release of histamine, resulting in transient dilation of blood vessels in the skin or mucous membranes, the exudation of blood vessel contents, the formation of edema, and the stimulation of nerves and smooth muscles and the appearance of itching and other symptoms.
The severity of urticaria depends mainly on where the edema appears. If edema appears only on the skin and manifests as a faint prurigo, there is no need to be too alarmed.
Because urticaria is a functional disease, as long as enough attention is given and treated early, the edema is eliminated, the function can be restored, and organic lesions are rarely produced, and even many people are still healthy for decades.
However, some people with serious allergies may involve other organs and even be fatal.
For example, gastrointestinal edema may lead to severe abdominal pain; edema of the throat, or urticaria with asthma, accompanied by airway edema, may lead to suffocation; others may experience anaphylactic shock, blood pressure disappears, no urine, and even loss of life.
02 With urticaria, finding the trigger is key
Urticaria may be spontaneous or due to sun exposure, emotional stress, cold, blunt scratches, or eating or inhaling allergens.
Depending on the specific cause of the disease, urticaria can be divided into different categories:
solar urticaria, caused by sun exposure;
Cold urticaria, caused by cold irritation;
oppressive urticaria, produced by blunt objects scratching across the skin;
Cholinergic urticaria, caused by nervous sweating.
If you know exactly what type of urticaria you belong to, and you usually pay attention to avoiding the triggers, urticaria will not occur.
However, many people may not find a specific cause of urticaria, and it will always occur repeatedly, so it is mostly chronic urticaria.
Therefore, in the treatment of urticaria, the first task is to find the trigger.
This is a long-term task that requires the patient to persist, cooperate with the doctor, find out the allergen, change the daily habits according to the allergen, and judge whether it is necessary to avoid the mouth.
03 Always have "antihistamines" in the pocket
Allergens are excluded, and symptomatic treatment with drugs can also be used.
Urticaria is an allergic disease, so as long as we take some antihistamine drugs, which are often said to be antiallergic drugs, we can effectively alleviate symptoms, and it is also recommended that patients prone to urticaria have antihistamines in their pockets.
At present, there are three main generations of antihistamine drugs, a total of more than a dozen drugs, the first generation includes diphenhydramine, promethazine, chlorpheniramine; the second generation includes cetirizine, loratadine; the third generation includes fexofenadine, desloratadine and so on.
Due to the strong central activity of the first generation of several drugs, often cause obvious sedative and hypnotic effects, so it is easy to get sleepy after taking, it is recommended to take at night; while the second and third generation of antihistamine drugs, most of them have no sedative effect, or only slight sedative effect.
If the conventional medication does not improve for more than 1-2 weeks, the amount can also be increased as appropriate under the guidance of a doctor, and the general mainland is mainly to triple.
If the drug does not work after increasing the dose, the doctor may also choose a combination of different generations or different generations of antihistamines, or it can also be combined with anti-inflammatory drugs such as hydroxychloroquine, or even glucocorticoids and immunosuppressants.
If urticaria occurs during pregnancy and lactation, it is recommended to choose relatively safer drugs such as chlorpheniramine, loratadine, and cetirizine.
References: Medical Microvision official website - Zhang Jianzhong Chief Physician "Urticaria (Rheumatoid)"