well, the Japanese have a soup called Okayu, which is given to the sick because it super easy to digest, and it could help you in this predicament.

All you do is combine a 1-to-3 part mixture of rice and water (or if you have dashi stock), bring to a boil, and let simmer for about 30 minutes. It is pretty much a fortifying rice porridge, it would slip down the sorest of throats! You could add green onions, ginger, or salt for seasoning. You could even add your favorite broth to give it a flavor. I usually have miso and salt in mine. Its really good as well!