Lip hardening after lip tattoo scabbing may be due to unabated edema, allergic reaction or infection, which can be handled by appropriate hot compresses and topical medications. 1. Edema has not subsided: after lip tattooing for a short period of time, edema occurs after skin damage, and hardening may occur. Patients can apply appropriate hot compresses on the scabbed part of the lips to promote blood circulation and metabolism in this area. 2. Allergic reaction or infection: If there is an allergic reaction to the dye or infection, anti-allergy and anti-infection treatment can be carried out, and patients can use loratadine, mupirocin ointment and drugs to repair the skin barrier, such as recombinant bovine alkaline fibroblast growth factor gel, etc., under the guidance of the doctor. For patients with hard lips after lip tattoo scabs, it is recommended to go to regular hospitals for timely examination and standardized treatment under the guidance of professional doctors.