Why suddenly get cholinergic urticaria

In most cases, cholinergic urticaria is caused by increased sympathetic excitability. Generally, it is related to strenuous exercise, high temperature environment, emotional excitement and other reasons.

1.

After strenuous exercise, the body heat will gradually increase. At this time, cholinergic nerves will impulse and release a large amount of acetylcholine to cause discomfort.

2. High temperature environment for a

long time in a hot, high temperature environment will lead to a sharp increase in body heat. At this time, it will usually induce diseases.

3. Emotional agitation

frequently leads to abnormal increase in sympathetic excitability. At this time, it will promote the release of acetylcholine and act on mast cells. Generally, it will also cause diseases.