Hello doctor, My father(56) got operated for varicose veins 2 months back. A week post operation, he had flash pain, when consulted, got to know that he had bacterial infection at a spot. Taken antibiotics and cured. 2 weeks later other spot got infected, taken antibiotics & got cured. Now,the same kind of pain at 2 other spots. I want to know why does the infection keep recurring? Is anything can be done to avoid this?