Self case of L4-L5 slip disc

I have been diagnosed  L4-L5 slip disc three years ago and now the pain is radiatingvto the lower left leg calf muscle.. As of now managing with exercises and physiotherapy. However,  I am able to do my daily activities of driving to the office and playing badminton in moderation.  However,  one of the neuro surgeon had suggested that surgery would be the ultimate solution.

Please guide and opine onbthe solution for me.

Best Regards,

Rajasekhar S