Agree with roisin, cutting back on dairy should be your first step. You can also mix 3 drops eucalyptus oil and 2 drops thyme oil with 1 teaspoon of vegetable oil and massage around chest and back, or a drop of either of these in hot water to inhale.
As for homeopathic remedies, there are so many variations you would probably be better off looking yourself.. try www.drlockie.com (sorry don't know how to do links!) which is an online version of his family remedy finder which is full of good advice, we use it loads at home! hth and you feel better soon