When sweat accumulates and becomes trapped under the skin, heat rash can develop in body areas such as the neck ... Sun poisoning symptoms typically develop within a few hours and peak (are at their ...

Sun poisoning or photodermatitis happens due to excessive and unprotected exposure ... areas of the body and involves significant skin damage and systemic symptoms. Heat rash occurs when sweat ...

The American College of Rheumatology (ACR) loosely defines photosensitivity as "a skin rash as a result of unusual reaction ... early transient skin lupus lesions that occurred after a few hours to a ...