Rashes on the skin are due to many disease the commonest one is allergic problems, stress rash is an allergy called urticaria that occurs when a person is stressed out. So urticaria can occur due to several thousands of reasons. Some people can get it due to dust, due to medicines, due to internal infections, due to food allergy, the list is endless. Anything around you can cause stress rashes. So stress rashes or stress induced urticaria is caused when a person is having anxiety or panic or they have an episode of depression. Maximum it can last for upto 24 hours and then resolves on its own. It can be treated with antiallergic medicines called as antihistamines.
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