hope these articles can help
https://ph.theasianparent.com/how-to-clear-a-clogged-milk-duct-2
https://www.whattoexpect.com/first-year/breastfeeding/milk-blebs-blisters-breastfeeding/#:~:text=A%20milk%20bleb%20or%20blister%20is%20a%20blocked%20nipple%20pore,bleb%2C%20preventing%20it%20from%20healing.
Mary Grace Maranan