I am the go to person for pet care. I have dog sat my brothers dog countless times. Over nights, for weeks at times. His dog is blind and requires eye drops twice a day so I have experience with administering medications. I puppy sit my sisters dog. I have puppy sat my neighbours dog and took them on walks many times as well. I do have experience with large dogs and small dogs as I own one large dog and one small dog. I am fine with Cats swell.