Patient's question:
Swollen hands and feet with red dots, accompanied by vomiting and abdominal pain? Unable to eat, haven't eaten for two days, only a small amount of water.Doctor's answer:
The causes of allergic purpura include infections, food allergies, drug allergies, pollen, insect bites, and other allergies. Treatment includes identifying and avoiding the allergen as much as possible; using antihistamines such as diphenhydramine, hydroxyzine, chlorpheniramine, and other corticosteroids.