The treatment method is to inject or take antihistamines or anti-allergic agents orally, which can alleviate the symptoms. 2. If it is caused by fish and shrimp, you can use perilla. If you have urticaria due to eating fish, shrimp, and crabs, you can eat a lot of fresh perilla leaves, or drink the decoction of perilla leaves. The method is to boil 5 grams of dried perilla leaves and 200 grams of water. 3. Chronic urticaria can be treated with sesame seeds. People whose skin is prone to urticaria can often eat sesame seeds to improve their physique, enhance their physical strength, strengthen their skin, and prevent them from easily getting rashes. Eating black sesame paste regularly has good effects. 4. Peach leaves can be used as a bath agent. The soup of peach leaves can inhibit the itching of urticaria and has the effect of preventing and treating urticaria. Dry the raw peach leaves in the shade, mash them into gauze bags, and place them in the bathtub. Boil the water and pour it into the bathtub. After cooling to the appropriate temperature, slowly soak your body in the bathtub. The effect is very good. 5. Decoction of loquat leaves is also effective. Decoction of loquat leaves is also effective in treating prickly heat and urticaria. Take three leaves, crush them with your hands, put them into 500 grams of water and boil them. After the juice has cooled down, use it to clean the affected area. You can also put loquat leaves in a gauze bag and put them in the bath water for a while to use as a bath agent. 6. Things that should be fasted when the rash is severe. Foods that Chinese medicine believes will make the blood dirty will worsen the urticaria.