If your child has a nosebleed after a cold and fever, you can take some oral medications to clear the heat and fire, such as Qingkailing, Shuanghuanglian oral liquid, etc., and oral antipyretic and analgesic medications, such as paracetamol, ibuprofen granules, etc. If the nosebleed bleeds more than once, or if the attack is more frequent, it is recommended to go to the hospital for a checkup to do the blood routine, bleeding and clotting time, etc.