research Effect of Hair Restoration Surgery on Scalp Sensitivity 1 citations , February 2020 in “Journal of Cosmetic Dermatology” Hair transplant surgery reduces scalp sensitivity by almost 40%, and smokers have less scalp sensitivity than non-smokers. The time since surgery doesn't significantly affect this.
research Effects of Curcumin and Its Different Formulations in Preclinical and Clinical Studies of Peripheral Neuropathic and Postoperative Pain: A Comprehensive Review 46 citations , April 2021 in “International Journal of Molecular Sciences” Curcumin shows promise in reducing pain and inflammation, but more research is needed.