Urticaria: Symptoms, Causes, and Treatment Symptoms Urticaria is a skin condition that commonly affects children and teenagers, but it can also affect adults. The symptoms of urticaria mainly include the following aspects: 1. Skin itching: A common symptom of urticaria is skin itching, which can range from mild to severe. 2. Red and swollen skin: Another typical symptom of urticaria is red and swollen skin. The skin becomes swollen and forms patches of red rash. 3. Honeycomb rash: Some patients with urticaria will develop honeycomb rash