Depends on the kind of injury. You can use हींग, अजवाँन (stomach ache), haldi milk/powder (weakness), curd (severe stomach issues :dehydration) electrol water is also good, honey and ginger (hot)(cough and cold).
1. Turmeric! The humble kitchen spice is a natural antiseptic and antibiotic agent that has been used for years for its medicinal uses.
4. Limestone powder
5. Aloe Vera
6. Coconut oil