A tumescent composition including a cannabinoid dissolved in a tumescent solution, wherein the tumescent solution includes a local anesthetic; a vasoconstrictor; and a pharmaceutically acceptable carrier, wherein a tumescent concentration of the cannabinoid is 1-2000 μg/kg and is simultaneously: below a threshold for local, subcutaneous tissue toxicity, above a threshold for positive local therapeutic effect, and above a concentration safely achievable by intravenous (IV), intramuscular (IM) or oral (PO) delivery. Also disclosed are methods of subcutaneous delivery of a cannabinoid to a subject including administering to the subject the tumescent composition.