Children with urticaria do not typically fear heat, but when the temperature is particularly high, they may experience alternating hot and cold temperatures. For instance, excessive sweating due to high temperatures can potentially irritate the skin, which might lead to a worsening of urticaria. When dealing with urticaria, it is essential to adjust the child's clothing according to the temperature conditions to avoid excessive sweating caused by wearing too much. Also, the alternation of warm and cold temperatures after sweating or exposure to wind can potentially aggravate the urticaria or cause it to recur. In the event of urticaria, depending on whether the child experiences symptoms such as itching, timely medical treatment should be administered, such as antihistamines, vitamin C, and calcium, all of which are viable options. The medication should be adjusted under the guidance of a doctor based on the child's condition.