Good day! Mom needs advice. I was prescribed antibiotics injection in …

Good day! Mom needs advice. I was prescribed antibiotics injection in the morning (Cefrixason). The doctor said not to feed him during the day - at night it's okay. Our baby is one year old and sometimes asks for breastfeed during the day. He may wake up three times at night and suckle. How can I not give him breast during the day? ?? He has been getting out of bed himself lately and lifting his clothes ? and may suckle for 5-7 minutes.