红肿很大、呼吸不舒服、全身过敏反应，就不是普通止痒能解决的，要及时就医。
If the swelling is large, breathing is uncomfortable, or there is a systemic allergic reaction, it cannot be solved by ordinary anti-itch measures; seek medical attention promptly.
If the swelling is large, breathing is uncomfortable, or there is a systemic allergic reaction, it cannot be solved by ordinary anti-itch measures; seek medical attention promptly.