Rebif 44 mg down to 22mg - anyone?

Hi all. Today my neurologist reduced my Rebif dosage from 44mg to 22 mg in the hope that this would help my platelet and white cell count to recover as they have dropped considerably over the last 2 and half years since starting Rebif. I have been relapse free for 2 years and am now anxious that this reduction might trigger a new relapse. Has anyone else had to reduce their dosage to 22mg? And was there any rebound effect? Any advice or information would be most welcome. Thanks to all in advance. Roger.