I have a 8 month old pygmy goat and a 8 month old alpine goat. The weather is getting colder and both goats have runny noses and coughs, they have a mild cold. I was wondering if there's anything natural i can give them to boost their immune systems or help fight the cold. I don't want to have to buy anything special or administer medicine if possible. I was thinking more like giving them something in the water or giving extra food or something. They have access to a mineral block and i feed hay and a little meat goat grain in the mornings and nights.