Hello. Thanks for writing to us at healthcaremagic. I will keep a possibility of Allergic Contact Dermatitis (ACD) to tattoo ink, as the reason behind rashes, swelling and irritation. Specific treatment for ACD would include topical potent steroid+antibiotic combination creams (e.g clobetasol propionate+fusidic acid cream), to be applied twice daily for a week or 10 days. Topical steroids are prescription products. An OTC oral antihistamine e.g cetrizine 10 mg once daily would provide you symptomatic relief from itching. I would suggest that you visit a dermatologist in your region for the needful. Your treating dermatologist might also start you on a short course of an oral steroids if deemed necessary, to take faster control of the allergic contact dermatitis. Take care regards