<unk>  is a skin condition characterized by an eruption consisting of small (1-5mm) red macules and papules with a pale halo, appearing within 10 to 15 min after emotional upset. There have been 10 cases described in medical literature, and involve a trigger (coffee, intense emotions) followed by a rise in catechomines and IgE. Treatment involves propranolol and trigger avoidance.
Adrenergic urticaria
Cholinergic urticaria
Solar urticaria
Aquagenic urticaria
Cold urticaria
Heat urticaria
Pressure urticaria
Delayed pressure urticaria