I have my EMT textbook and large EMT box with wound treatment items and have leg and arm splints.
For badly bleeding wounds, I have Celox to stop the bleeding and Steri-Strips to close large wounds after they are cleaned and antibiotic ointment is applied.
Have oxygen tank and masks. Have antibiotics, plus over the counter meds for various ailments.
If someone doesn’t have Celox and Steri-Strips, those are the two items I would recommend as very important along with the antibiotic ointment.
Coban, hydrogen peroxide, neomycin ointment and drops, hurricaine gel, and benzocaine are also good to have on hand.
I've also used DMSO for an analgesic and anti-inflammatory. It works!