Girls, last night the baby was restless on my breast, constantly turni…

Girls, last night the baby was restless on my breast, constantly turning his head, as a result of which by lunchtime the next day I felt a slight pain and lump in my chest, read that it clogged the duct, did as they advise there, managed to express and everything is fine, but today I noticed a white spot on the nipple… has anyone had something similar? What should I do with this? More milk didn't stagnate