Is Cholinergic Urticaria an Allergy?
Cholinergic urticaria is typically classified as a hypersensitive response to heat (increase in body temperature). It is generally not classified as an allergy like food allergies or environmental allergies. Some studies conducted suggests that cholinergic urticaria may have different subsets, of which one does show a positive response to analogous sweat. However, it is still unclear whether or not an actual allergy to sweat or acetylcholine is what causes this condition. It could be weak mast cell membranes in the skin, or other potential reasons. More research is needed for this condition. At this time, there is no strong evidence to suggest this is caused by food allergies, or environmental allergies. It seems to be an internal condition caused by internal factors.
