Free images results:

Aid pictures, stock photos and images


Aid Stock Photography
Author: Gobigpicture
Help 1 Royalty Free Stock Photo
Author: Lleha
Red cross 1 Royalty Free Stock Photos
Author: Lleha

Also, here are some commercial RF-licensed images that match your search criteria:  
First aid Stock Image
Author: Hyrons

Explore more commercial options: More Aid Stock Illustrations & Vectors | More Aid Stock Video Footage