Let me tell you the following story. We were at a campsite at the Fish River Canyon in Namibia in south - west Africa, pretty much in the middle of nowhere, when that guy entered the laundry hut to check for a condom machine. There was none and he asked everybody for condoms being very nervous about finding some. Well my buddy had some on hand and helped him out. I think it is important to be prepared for anything.
Hydrocortisone is also good to have to reduce swellings, itching and pain.
Try to educate yourself to help yourself or others in case of emergency. Talk to experts, take training and learn the basics of first aid.