Urticaria, or hives, often stems from allergies, but it’s not always the main cause. Allergic reactions to foods, medications like cephalexin capsules, or environmental triggers can spark itchy, red welts. However, urticaria can also arise from non-allergic sources like stress, infections, or autoimmune conditions. Chronic cases may involve complex factors beyond allergies, including thyroid issues or heat exposure. Identifying the root cause is key consult a doctor for tests or to discuss medications like cephalexin capsules supplier if infections are suspected. While allergies are a common culprit, urticaria’s triggers vary, requiring personalized diagnosis and treatment for effective relief.