Hi Dear, Welcome to HCM. Understanding your concern. As per your query you have symptoms of itchy skin rashes after getting tattoo which seems to be due to allergic reaction and can be a delayed allergic reaction to the chemicals used in tattoo dyes. It could be due to allergic reaction to cosmetics, foods, detergents, poison ivy which can cause allergic dermatitis. Need not to worry. I would suggest you to start taking anti allergics medications such as Allegra. You should apply a steroid ointment like cortisone over the rash area for relieving inflammation and itching. Application of calamine lotion will be effective to soothe the skin. Apply cold compresses over itchy rashes. You should maintain proper cleanliness and avoid scratching the bumps to prevent infection. If symptoms still keeps on persisting you should visit dermatologist once and get it examined. go for patch test and blood tests and start treatment after proper prescription. Hope your concern has been resolved. Get Well soon. Best Wishes, Dr. Harry Maheshwari