How does one year old much darling urticaria do

More than one year old baby shows urticaria, more common reasons: the first is allergic to substances in the environment, such as dust mites, pollen, caterpillar venom, or secretions like some trees, as well as formaldehyde or paint in newly renovated houses may induce urticaria. The second type is caused by food, such as some seafood foods, or fruits such as mangoes and pineapples, as well as some snacks, drinks, and frozen things. The third type is found in infections, such as bacterial or viral infections of the upper respiratory tract, or bacterial infections of the digestive tract. Urticaria can also be induced. Specific words, you can go to the hospital to see a doctor, do some necessary blood tests to assess whether it is due to food or environmental factors? Or because of an allergy caused by infection? Then choose the appropriate drugs for symptomatic treatment.