Has anybody else suffered from a reoccurring blocked milk duct? When I finally think it's gone, it…

Has anybody else suffered from a reoccurring blocked milk duct? When I finally think it's gone, it comes back a couple days later. I don't know what I'm doing wrong. It's just the one breast, and I always feed him off that one first until he moans, presuming there's no milk, I swap him over to the other. 😕