Girls, I have a question. I got sick, the doctor looked and prescribed…

Girls, I have a question. I got sick, the doctor looked and prescribed treatment that can be taken while breastfeeding and said if it doesn't get better in three days, I need to have an X-ray of my lungs. Has anyone done this after? Can you breastfeed afterwards? I didn't ask the doctor, she ran away so quickly, they have many calls, they're busy.