Hi Tonnie, I am sorry about your allergy, that needs to be hard. Regarding the automatic feeders I can present you with Tips for your two cats. The Tremendous Feeder 3XL Combo allows you to ignore filling the hopper normally as it comes along with a one.5 Gallon excess hopper, https://fishfood12211.wikiannouncement.com/9186111/rumored_buzz_on_cat_food