Skin disease, what should I do if I have chronic urticaria?

I went home for a long holiday last year, because I have liked to eat fish since I was a child, and my dad is engaged in fish pond farming, so I eat fish every day, such as steamed fish, fried fish, stewed fish, sauerkraut fish, sweet and sour fish, and tempeh fish. Wait a minute, my dad did everything in the meeting, and I ate very happily. When I was too happy, there was a tragedy. One night my thigh suddenly started to itch. I rolled up my pants and found a small piece of red mass. , The more itching, the more itching, the spread of the red group is getting wider and wider, my mother said it was a wind group, it should be an allergy, and after smearing Wanjin Oil, it slowly subsided. I thought it was because the bed was not clean. The next day, I took the sheets, duvet covers, pillowcases, and mats on the bed to wash and dry them. The next night I slept in the middle of the night and started to itch again, and my entire back, thighs, and neck were all up. The wind group is a lot more serious than before. The effect is not great, and I can’t sleep. I stayed up until dawn and until nine o’clock (the village’s health station does not open until nine o’clock) before going to the health station, the doctor said. It is chronic urticaria. I prescribe drugs and injections. I also explain that you should try not to eat seafood, beef, or spicy food. I don’t know if there is any factor in eating fish regularly. Anyway, I started to be a vegetarian. I started to jog around the fish ponds to exercise my body and improve my immune system. At the beginning, I would itch repeatedly every few days, not serious, for more than ten days. Later, I resumed eating meat (only pork and chicken). Later, the episode occurred once or twice a month, then once in a few months, and then again for a long time. I think my type is only very mild. For more serious ones, you can go to the hospital for treatment and take medicine. Try not to eat foods that cause allergies, and exercise your body to improve immunity.