Drink lots of water. Go to bed early and sleep in, and lots of rest.
Don't have a home remedy really, probably bollocks, if the worked everyone would know about it.

Like DP said, Lots of Water, plus Vitamin B complex and no dairy products until you are no longer congested. Lots of red meat too. Chicken soup is always good too. (I have a really good recipe for this)

1 Boiling hen
Boil until meat is no longer pink (approx. 1 hour)
take the meat off the bone and shred or slice finely.

With the broth (the water you boiled the chicken in) add 1 cup Split Peas (or more depending on how thick you want it), 1 cup each of Diced Potatoes, carrots, parsnips. Salt and Pepper (and a couple of pinches of ground cummin seeds)
Boil together until vegetables are soft. Add your chicken meat and cook until meat is heated through. Serve with a few splashes of Worcestershire Sauce.

Hope this helps. (also works well with Bacon Bone too)

In a glass put,

Juice of 1 lemon
Tablespoon cider vinegar
Squash 1 garlic clove
Tablespoon of honey
Top up with hot water.

If the first glass doesn't cure you, just the thought of drinking the next one will.

Peppermint tea, honey and a few thinly sliced wedges of ginger before bed
berrocca n juice in the morning.