If you have a blocked milk and fever, you should not breastfeed at this time because the milk will contain a lot of bacteria or viruses that can infect your child and cause serious consequences. If it is more serious, you need to use the milk stroking method to open the milk ducts. If it still does not relieve the fever, you need to go to the hospital for antibiotic injection for treatment. Before injecting antibiotics, it is best to do a drug sensitivity test and bacterial culture to target the type of infection for antibiotic treatment. If there is localized redness, swelling, heat and pain, surgical incision and drainage is required and breastfeeding should be terminated and not breastfed in the future.