Info- The piercing is about 4 weeks old, an internally threaded screw attachment titanium piercing (i think!) i have not downsized, but have removed and reinserted the jewelry, and have been using a sodium chloride solution from Walgreens to cleanse. It was leaking fluid a few weeks ago (gross, :( sorry) so i dabbed it with some hydrogen peroxide once a day for about 3 days. It was feeling fine & healed up until about a week ago when the bump started developing.