1. Disc herniation with cervical canal stenosis is basically a mechanical issue which cannot be treated with medication. Medications can only improve your symptom / pain or may be numbness to a part, but cannot get back the herniated disc
2. Since she had developed tingling sensation
in her left thumb --> nerve compression by the herniated disc.
3. Not all cases of herniated disc +/- nerve compression require surgery. Give a trial of cervical traction and see whether her numbness improves. If she is not benefited by traction, then surgery is the only way to get rid of the numbness.
4. Surgical complications can range from none to immediate postop blood collection inside canal. Risks are always involved in all surgeries (simple to more complicated) that we have to accept - ranging from infection to technical difficulties with added co-morbid conditions of the patient themself (age, wound healing
, bone quality, diabetis / heart disease/ hypertension
/ thyroid or metabolic diseases etc..). Better surgical techniques with use of microscope has decreased such complications. So operating on cervical spine
now-a-days with good ICU care is becoming a routine.