Papular urticaria is a type of allergic reaction, with most allergens being relatively clear. It is related to contact with irritants or bites from mosquitoes and fleas. Generally, if the symptoms of the disease are mild, no treatment is needed, and it can go away on its own after a few days. However, if the symptoms are severe, such as the appearance of blisters or signs of infection, it is best to treat symptomatically. Commonly used oral and topical anti-allergy medications can be employed. It is also important to frequently expose clothes, bed sheets, and duvet covers to sunlight for disinfection to eliminate mites or fleas. Do not keep small animals at home, try to avoid going to places with many flowers and trees, refrain from consuming spicy and irritating foods, and avoid staying up late.