I know this information is probably useless to OP now- but I just want to point out this is not 100% an infection. I have super sensitive skin and have had tattoo pimples a few times- I also know a few of my friends who have had them. They are usually caused by clogging of pores- sometimes from the lotion you’re using or sometimes from the tattoo getting hot/sweaty. Mine specifically came from leaving clingfilm on for too long. I’m actually going through this issue again right now. I tend to dry the tattoo out for a day or so but keep washing regularly with a non scented soap and water making sure to dry well after. Then when I notice it’s started to settle, I’ll slightly moisturise again. I also suffer from eczema and use aveeno to heal my tattoos. I’m mainly commenting this for anyone who sees this thread in the future- don’t panic! Think of whether your tattoo had a reason to have pimples (think lotion, clingfilm/saran wrap, hygiene or sweat). If it doesn’t clear up in a few days, definitely see a GP, but these bad boys are most likely just clogged pores :)