Hello, ESR (Erythrocyte Sedimentation Rate) is simply a laboratory test that, when elevated, means that there is a source of inflammation in the body. In my experience, since you recently underwent surgery due to an infection, this is most likely the cause of the inflammation. As long as you continue the prescription of your surgeon, additional homeopathic treatment wouldn t decrease the ESR in a further manner. With the help of the antibiotics and analgesics/anti-inflammatories prescribed, this number should continue on a progressive downward trend.