I am sorry Boo is not feeling well.
It sounds like he has a sore throat.
Give him two drops of honey every 4 hours. It will sooth his throat.
It is a remarkable healing agent:
Remove all dry food and any wet with chunks, pieces or shreds.
Feed only smooth pate canned food or baby food chicken with no onion or garlic
If he gets dehydrated give him tuna water drained from the can.
Please let me know how he is doing .
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