Is an allergic reaction characterized by hot and itchy skin?

An allergic reaction can indeed be characterized by symptoms such as hot and itchy skin. When the body comes into contact with an allergen, the immune system can overreact, releasing histamines and other chemicals that lead to inflammation. This process often causes various skin reactions, which may include redness, warmth, and intense itching.

These symptoms can manifest as conditions such as hives (urticaria), eczema, or contact dermatitis, where the skin becomes not only itchy but also may feel warm due to increased blood flow to the affected area as part of the inflammatory response. Therefore, the answer is supported by the common presentations of allergic reactions, particularly those that involve dermal symptoms.

Other answers that might suggest otherwise could stem from specific medical cases or conditions that do not always present with skin symptoms, but in general, the characteristics of itchiness and warmth in the skin are indeed associated with allergic reactions.