What First Aid items exist and how do I use them?

Bandage: A simple first aid item that instantly restores some health. Great for stopping bleeding and is available immediately without needing a workbench recipe. Crafted from cloth.

Medkit: A powerful healing item that restores significant health. Requires unlocking the workbench recipe first. Crafted from cloth, metal fragments, and fuel bottles. Carry one before heading into battle.

To use any First Aid item, tap "Consume" in your inventory or place it in a quick slot and press the action button during gameplay.