My baby was illness from 1 month .she is in coronary artery disease. Her esr is very high She get ivig and then get continue asprin tabs Now she is high heart rate

Please visit a doctor in person. This will help in better evaluation and diagnosis. Based on that, the doctor will suggest some medications etc. to manage the heart rate and CAD. Also, it is important to regularly monitor the blood work to see if the medications are working and the condition is not worsening.