Geomancy

Geomancy (ジオコントロール, jiokontorooru) is the signature healing technique of the Seventh Kazekage. It is said to have given Kazaru an immunity to all toxics, allowing for the Silver sulfadiazine resting within his bloodstream to combat any intruding viruses.

Usage
Silver, the the most feared weapon in the history of Sunagakure, utilized by Kazaru, the son of Gaara, is composed of Silver sulfadiazine and Silver nanoparticles. Silver sulfadiazine drastically increases the rejuvenation time of wounds. Proteases like trypsin and clostridiopeptidase, which are contained in ointments used for the removal of dead skin on wounds, can be inhibited by silver ions if applied simultaneously.

The regeneration ability is invoked at an atomic level, and as such, does not require chakra. This allows Kazaru to heal himself without the necessity of hand seals, and whilst drained entirely of his own chakra.