Hello everyone, I'm asking for advice. I'm very worried about one top…

Hello everyone, I'm asking for advice. I'm very worried about one topic. Four years ago, when I gave birth to my son, I fed him with breast milk for three days and suddenly, my left breast became blocked, and I had a fever for five days at 40 degrees. Doctors said to express, but nobody showed me how, and my husband helped, as did his parents, but it all led to them saying you need to take a pill to burn it off otherwise we have to cut it. Now I'm on the 23rd week of pregnancy and I'm very worried that it will happen again. Tell me how to feed properly, should I continue expressing? Everything related to breastfeeding