Hi, Lisa.
In case you can't get the diet that gpm suggested, I think you can give her milk mixed with water. Start with 1/3 milk + 2/3 water. You can pour a bit of this on a slice of bread or toast. Little kittens love to suck that from the bread. may be Yasmine too?
If the cold and diarrhea do not go away, may be you have Echinacea, which you can put 5 drops of in the water.
Good luck!
shoshy.

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SHOSHY