Worsening CTS

Hi Team,

Confirmed CTS on 11/10/23, recieved steroid injection to right wrist on the day. Post injection symptoms were relieved in regard to pin and needles and numbness however there general aching continued.
For the past 6 weeks I have noted the pins and needles have returned and worsening numbness. Evening and night times are worse especially if I have been at work for the day.
My work is very manual and involves heavy use of my hand, my dexterity is an issue which is becoming more apparent in my day to day work (I am a clinical lead with the renal dialysis nursing team)
Could you advise on the next process, I have updated my severity score online.
Many thanks