The main difference is the color of the fluid-filled bumps, which are red or purple in DH and white or flesh-toned in eczema. Trauma (any type of injury) to the skin can cause an itchy blister rash to ...
These conditions often share symptoms like burning and itching. Rashes that appear red in people with lighter skin tones or brown or purple in people with darker skin tones are also common.
The above source continues to mention that stress and anxiety can trigger the release of histamines, which can cause allergic reactions and anxiety rashes. It is claimed that some patients experience ...