Is waterborne urticaria contagious?

summary

Aquagenic urticaria is an extremely rare skin disease, also known as water allergy. Severe patients can only drink a small amount of coke to supplement body water, not too long time contact with water, bath can only flush a few minutes. There are only 35 cases in the world, and no one has been cured. Is waterborne urticaria contagious? Next, I'd like to share my views with you.

Is waterborne urticaria contagious?

The rash is usually located in the neck, upper limbs and upper part of the trunk. After the wheal is stimulated by tap water, it is isolated for 30 minutes and then exposed to distilled water to reproduce the typical wheal immediately. At the same time, the results of skin test with sterile water for injection are positive, indicating that the occurrence of wheal does not originate from the biological effect of organic ions in tap water. The main symptoms of allergy are body pain, itchy skin, redness and swelling, which can last for several hours.

Water source urticaria is a kind of urticaria and vascular edema caused by scratch, pressure, cold, heat, light, water and tremor. It is mostly seen in women with allergic constitution in puberty or pre puberty.

The patient may have some kind of allergic constitution, which may induce the formation of water allergic constitution in some cases. The results showed that the level of histamine in blood of patients with idiopathic watery pruritus and urticaria was increased, mast cell degranulation was found in the lesion tissue, and passive transfer test was negative.

matters needing attention

At present, there is no cure for watery urticaria, which can be alleviated by desensitization therapy. When the symptoms are serious, antiallergic treatment should be given. Oral administration of H1 receptor antagonist before 1 hour of large area water contact can reduce the formation of wheal.