A patient gets reccurent urticaria while doing exercise and on exposure to sunligh. Which of the following is most like cause –
This patient develops urticaria after:-


Exercise
Exposure to sunlight → generalized heating


Both of these provoke cholinergic urticaria due to stimulation of cholinergic sympathetic fibres.
Chronic Idiopathic Utricaria
Universal dermographism
Cholinergic utricaria
photodermatitis