Urticaria prophase symptom?

summary

Urticaria is commonly known as rubella. It is a localized edema reaction due to the expansion of small blood vessels and the increase of permeability of skin and mucosa. It usually subsides within 2-24 hours, but new rashes occur repeatedly. The course of the disease lasted for several days to several months. It is common in clinic. Urticaria prophase symptom? Let's talk about it

Urticaria prophase symptom?

The basic damage was the appearance of wheal on the skin. Often have skin pruritus first, appear immediately wheal, show bright red or pallid, skin color, a few patients have edematous erythema. The size and shape of the wind mass are different, and the attack time is uncertain.

Due to edema of dermal papilla, the mouth of epidermal hair follicle is depressed. The wind mass lasts for several minutes to several hours, and a few of them can be extended to a few days and disappear without leaving any trace.

The rashes occurred repeatedly in batches, and most of them occurred in the evening. Fengtuan is often widespread, but also limited. Sometimes combined with vascular edema, occasionally formed bullae on the surface of the wheal.

matters needing attention

When patients with chronic urticaria have autoimmune basis, the disease is repeated, and the above treatment can not achieve satisfactory curative effect, immunosuppressant can be used. Cyclosporine has good curative effect, azathioprine, cyclophosphamide, methotrexate and immunoglobulin can be used, Tripterygium wilfordii also has certain curative effect. Because of the high incidence of side effects of immunosuppressants, it is generally not recommended for the treatment of urticaria.