I too, began getting little bumps in certain parts of the outlines and main parts of the ink. The "pimples" have appeared in 9 month old and 5 year old ink. Never had this problem, everything has healed fine. I recently started a new job that requires alot of physical work and I sweat profusely. The bumps look like pimples, they don't itch, they're not bothersome, they're not even noticeable unless I look really hard and run my fingers over them. After researching online and not finding anything except for "infections" and other things to be concerned about, I'm thinking it's more about sweat pores. Since they only appeared after starting this job, this has to be the only reason. If anyone has anything to add, I'd like to know.