 [ Symptoms ] i had a lumbar laminectomy  discectomy on the l5 s1 around 8 9 months ago for some pretty painful sciatica [ Disease ] low wbcs are a sign that your body immune system is very weak and is unable to tackle the infections that enter your body that is why you need to take higher antibiotics like augmentin though you may get better with augmentin now in long term you need to concentrate on increasing your body immunity