Heal

Bonus to natural healing	Roll Result
No modifier	< 15
1.5x healing	16 - 25
2x healing	26 - 30
3x Healing	> 30

Healing is the skill that allows your character to treat wounds, injuries, poisons, and/or diseases. (that page will contain information on heal's usage in that context.) It can also be used to recover HP So long as it's used before a rest period to increase the amount of natural healing during the rest. Below is a chart for how rolls affect natural healing. A character must have a healer's kit to attempt any healing check.