Dealing with Extreme Cold or Heat
Hives can occur as a reaction to extreme temperatures, whether it be excessive heat or cold. In either situation, the appearance of hives is typically accompanied by symptoms such as lightheadedness, fatigue, and occasionally, feelings of nausea or diarrhea. If you experience hives after being exposed to extreme temperatures, it is advisable to seek medical attention as you may be at risk of developing conditions like hypothermia or heat stroke.
How Sunlight Exposure Affects People with Solar Urticaria
Exposure to sunlight is generally beneficial for most individuals as it provides a rich source of vitamin D. However, for those who suffer from solar urticaria or chronic acquired photosensitivity disorder, spending long hours in the sun can be a distressing experience. Solar urticaria is an allergic reaction to sunlight that causes the appearance of hives whenever the skin is exposed to it.