If you have a cold or flu during breastfeeding, you should first use anti-inflammatory drugs to clear the heat and detoxify the body, for example, you can use Banlangen granules, which have the effect of clearing heat and detoxifying the body and are more effective in relieving upper respiratory tract infections. The flu is originally a cold virus or bacterial infection of the upper respiratory tract, so it is relatively safe to use Banlangen granules for breastfeeding, 3 times/day, 1 time/bag, better taken with boiling water. In addition, if the symptoms of sore throat and wind-heat cold are more serious, you can use Pudilan Anti-inflammatory Oral Liquid for treatment. It can relieve sore throat and other upper respiratory system infections, and is very effective for wind and fever colds. If the above drugs are not very effective, it is necessary to check the blood routine. If there is an elevation of white blood cells in the blood routine, it indicates a combination of bacterial infection, and antibiotics should also be used for treatment.