Tattoo itch may be localized infection, allergy to tattoo pigments, hives, etc., according to the cause of the symptomatic treatment. 1. Infection: tattoos will cause wounds on the skin, if you do not pay attention to the wound site cleanliness and hygiene, too early in the water easily triggered by bacterial infections, there will be redness, swelling, pus, itching and other symptoms, you can apply fusidic acid cream, mupirocin ointment and so on treatment. 2. Allergy: tattoo dyes are generally chemicals, if allergic to these chemicals can also cause itching, you can apply local hydrocortisone cream, tretinoin cream, the symptoms are more serious should consult a doctor in time. 3. Urticaria: tattoos will cause physical stimulation of the skin urticaria, you can apply glycerine lotion, mometasone furoate cream, the symptoms are obvious, you can take diclofenac tadalafil, ibuprofen tablets and so on. Tattoo itch may have other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, give targeted treatment or treatment. All of the above drugs should be used in accordance with medical advice.