chemical matricectomy 

PODIATRY, SURGERY 

The use of a caustic chemical–e.g., phenol, to selectively destroy part of the nail bed in patients with ingrown toenails. Given the unpredictability of phenol, some workers have used various sodium hydroxide concentrations to manage ingrown toenails

References nott.ac.uk/˜˜muzd/CRound_w.htm

Dermatol Surg. 2004 Jan;30(1):26-31.