My cat has an immune condition caused by unknown allergens that make her paws swell up. The swelling usually develops into pus blisters in between the toes then the blisters would pop and create painful open sores on her paws. We have tried everything from antibiotics, allergy medications, steroid creams, and many trips to our local vet - nothing was working. The vets were puzzled and didn't really know what to do. I read a scientific study online about the properties of colloidal copper in healing bed sores, I thought if this applies to human wounds then it must apply to pets too. I took a chance and ordered a bottle. This has been THE best decision I have ever made for my cat. She's had a couple flare ups since I purchased but each time I just dip a cotton ball with the solution and clean her paws with it a couple times a day. The sores close up and heal within 3-4 days. The copper doesn't sting since she doesn't even flinch when I apply it to her skin. With regular weekly maintenance, she hasn't had a flare up in the past couple of weeks!!! What a miracle! I also tried applying this on cuts and wounds on myself and it feels very soothing and the cuts close up within a day or two. I honestly cannot recommend this enough!