Picture 1 â Sun Poisoning Rash. Source â prime health channel. When excessive exposure of the skin to the harmful UV rays of the sun causes an allergic reaction in the form of development of itchy skin rash and the reddening of the skin, one may be said to suffer from Sun Poisoning Rash.
Note that excess niacin intake can cause symptoms similar to an allergic reaction, including skin flushing, stomach redness and warmth, particularly of the face. Your physician may recommend allergy testing to determine if you have an allergy or symptoms of excess intake.
Signs and Symptoms of Vitamin B3 Niacin Deficiency. A deficiency in dietary niacin is uncommon in developed countries where malnutrition is not commonly seen. Clinical symptoms of a vitamin B3 niacin deficiency are usually categorized as the â3 Dâsâ: dermatitis (skin rashes), diarrhea, or dementia.