You are improving at the standard rate which is excellent. Numbness typically is uncovered after the pain is gone. Numbness was most likely present prior to surgery but was uncovered after the pain disappeared. It takes about 3-6 months for the area of numbness to shrink down.
Hyperbaric oxygen exposure will not be necessary. This might be somewhat helpful for healing but typically is only used for massive trauma or poor healing potentials such as a diabetic patient.
Acupuncture I would be wary of in the immediate post-op period. Any needle that pierces the skin can transmit bacteria into the blood stream. This can set you up for infection. I would wait at least three months before acupuncture is used.
Marijuana will not help healing and in fact, the inhaled smoke from marijuana will inhibit the osteoblast migration and should be avoided for 3-6 months.
Dr. Corenman
Donald Corenman, MD, DC is a highly-regarded spine surgeon, considered an expert in the area of neck and back pain. Trained as both a Medical Doctor and Doctor of Chiropractic, Dr. Corenman earned academic appointments as Clinical Assistant Professor and Assistant Professor of Orthopaedic Surgery at the University of Colorado Health Sciences Center, and his research on spine surgery and rehabilitation has resulted in the publication of multiple peer-reviewed articles and two books.