Hello, blisters after lip tattoo are mostly caused by inflammation. The treatment is as follows: Anti-inflammatory treatment is to strengthen antibacterial drugs. You can puncture the foam surface with a single needle, grind it into powder with metronidazole tablets, make it into paste with auxiliary materials, and apply it externally to the foam. 20 to 30 minutes. Oral prociclovir. Inject interferon or transfer factor to improve immunity. Lip lines can completely return to normal in 2-3 months. If you are in poor health, it will last about 4-5 months. Pay attention to diet after operation, don't eat hair, don't take medicine and don't beautify.