Surgery is the treatment of choice for Ganglion cyst but as you mentioned it’s quite not possible at present
Do not panic, ganglion cyst are usually asymptomatic on aggressive movements it may radiate pain
Next Steps
Rice therapy should be followed
R. Rest
I. Ice treatment
C. Warm compression
E. Extra movement should be avoided
Health Tips
Try to use Wrist cast or band so movement is limited
Don’t touch it