Answer:
Traditional treatment options for cholinergic urticaria are antihistamines, leukotriene inhibitors, and immunosuppressives. However, cholinergic urticaria in some patients may be refractory. Sometimes, an attack of cholinergic urticaria can be aborted by rapid cooling.
They feed by filtering feeding they feed on tiny organic material which is filtered through them
1. Exchange materials with its environment efficently
Kinins are always present in an individual's blood. however, in the absence of infection, it is in an inactive form. The kinins are polypeptides that as blood components generate various mediators and many<span> cardinal manifestations of </span>inflammation.
