Squeeze out the bag or cheesecloth. You should have a mucus like gel. Give the pet a little bit every couple of hours to help settle the system. Ginger is also a very good herb to be used to settle the stomach. It's particularly useful as a preventative when vomiting occurs due to travel sickness.
Chamomile tea is very soothing for animals to enjoy.
It can be used with peppermint as well and is easy to find. If need be, freeze in ice cube trays for a real treat. The flower essence Agrimony will help in that case also. Aloe vera essence helps with indigestion and locquat will help create a better digestion. Homeopathically, there are a few remedies that may be indicated.