✔ 最佳答案
why you need injection? isn't it because of vaccination? or dental treatment? i'm afraid the pain induced by vaccination is not avoidable. or you can try ice-pack on the injection area before sticking in the needle. ice reduces the temperature and thus the sensation is reduced too. if you need injection is because of dental treatment, you can let your dentist know your fear. some dentists may give you topical anesthetic gel before injection.