Blisters on the lip can be due to cold sores, sunburn blisters, canker sores, and more. Treatment can depend on the underlying cause. There are many reasons why lip blisters develop, including ...

Is it a cold sore or a fever blister? You have a tiny, clear, and fluid-filled blister or group of blisters on your lip, it might itch, tingle, or burn. Is it a cold sore or fever blister? Technically ...