The BSA has their own recommendations for what to pack in a First-Aid Kit.
Here are the basics for your pack:
Six adhesive bandages
Two 3-by-3-inch sterile gauze pads
One small roll of adhesive tape
One 3-by-6-inch piece of moleskin
One small bar of soap or travel-size bottle of hand sanitizer
One small tube of antibiotic ointment
One pair of scissors
One pair of non-latex disposable gloves
One CPR breathing barrier
Pencil and paper
This first-aid kit should cover one patrol on a typical outing:
First-aid manual, like the “First Aid” merit badge pamphlet
1 2-inch roller bandage
2 1-inch roller bandages
2 rolls of 1-inch adhesive tape
6 alcohol swabs
Water purification tablets
12 assorted adhesive bandages
2 elastic bandages, 3 to 6 inches wide
12 3-by-3-inch sterile pads
Antiseptic towelettes
2 triangular bandages, 40-inch
2 3-by-4-inch nonadherent sterile dressings
5-by-9-inch trauma pad to stanch bleeding
Moleskin
3 butterfly closure bandages
Petroleum jelly
Antibiotic ointment
Insect repellent
Scissors
Tweezers
Safety pins
Aloe vera gel for sunburn
2 pairs latex gloves
Mouth-barrier device
Gather these materials and keep them in a handy spot in the house:
First-aid manual, like the “First Aid” merit badge pamphlet
2 2-inch gauze bandages
Roll of 1-inch adhesive tape
12 3-by-3-inch sterile pads
12 assorted adhesive bandages
2 elastic bandages, 3 to 6 inches wide
Thermometer
Scissors
Tweezers
Box antiseptic wipes with benzalkonium chloride
2 pairs latex gloves
Safety pins
Calamine lotion
Eye goggles
Mouth-barrier device
Small bottle antihistamines (Benadryl)
Small bottle acetaminophen for pain and fever
Small bottle ibuprofen for inflammation, muscle aches, pain and fever