There is no soup quite like the traditional Jewish chicken soup My Jewish friends call it their penicillin and say it works better for chest infection than anything. You'll find masses on the internet. All I would emphasise is, use a freerange chicken. M&S. Even better, a proper hen from a farm. That's where the magic flavour comes in.
I'm off on the trail tomorrow as I've just found to my great joy that I can eat finely minced fowl again.