Redness and swelling after tattooing is an inflammatory reaction that occurs locally in the skin, which can be treated by daily care, physical therapy, taking medication and other methods. 1. Daily care: avoid scratching the local area, wear loose and comfortable clothes, avoid friction on the affected area, contact with water on the red and swollen parts to avoid aggravation of the lesions. 2. Physical therapy: you can use ice packs or cold towels on the affected area for cold compresses, cold compresses can be about 3 to 5 times a day, to a certain extent, can play the effect of swelling and pain. 3. take drugs: if the affected area is infected, you can choose to use topical fusidic acid, mupirocin and other drugs for treatment. Tattoo after redness and swelling need timely medical treatment, under the guidance of a professional physician, remember not to blindly use medication, so as to avoid adverse reactions, is not conducive to the recovery of the condition.