Can Swelling In Lymph Nodes Be Reduced?

I HAVE HAD SWOLLEN LYMPH NODES FOR OVER 8 MONTHS, THEY REMOVED TWO ON THE RIGHT SIDE OF MY NECK AND WERE THE SIZE OF FIGS, THE BIOPSY SHOWS IT IS NOT CANCER. THE DR SAYS WE MAY NEVER KNOW WHAT IS THE CAUSE AND UNKNOWN HOW TO REDUCSE THE SWELLING. ANY SUGGESTIONS