u/Gloomy-Temperature-6

Hi! I've had my medusa for about 5 years but recently when I take out the labret to clean or do threadless instead of internally threaded jewlery tops....I struggle to get it back into its nesting pocket. Never had issues before. Obviously its mad and swollen from trying a lot this last time but why would this be an issue now? I haven't changed it out a lot. Only once in a few months actually but I do clean it with every brushing. The disc backing is 4mm and always has been, should I try to find 3.5 or 3mm? Anyway this is annoying and uncomfortable and I'd like it to try back in its little pocket thanks lol