Whether you buy a first aid kit or make your own, make sure it has all the necessary items. Include personal medications. Check expiration dates regularly, and replace any used or out-of-date contents. The Red Cross recommends that all kits for a family of four include:
2 absorbent compress dressings (5 x 9 inches)
25 adhesive bandages (assorted sizes)
1 adhesive cloth tape (10 yards x 1 inch)
5 antibiotic ointment packets (approximately 1 gram)
5 antiseptic wipe packets
2 packets of aspirin (81 mg each)
1 blanket (space blanket)
1 breathing barrier (with one-way valve)
1 instant cold compress
2 pairs of non-latex gloves (size: large)
2 hydrocortisone ointment packets (approximately 1 gram each)
Scissors
1 roller bandage (3 inches wide)
1 roller bandage (4 inches wide)
5 sterile gauze pads (3 x 3 inches)
5 sterile gauze pads (4 x 4 inches)
Oral thermometer (non-mercury/non-glass)
2 triangular bandages
Tweezers
First aid instruction booklet
Source: American Red Cross