How are you stocked up for citrus juice? When my kids are sick like this, I put them on three days of orange or grapefruit juice and at least 3 tablespoons of echinacea tincture every day. I either offer them ginger juice or peppermint tea if they are nauseous. They almost always opt for the peppermin tea. I ask them if they want Willow Bark tincture for the aches but they always say no. I give them hot broths if they will drink it, tell them to take a detox bath for the steam/ sauna/general detox, and let them sleep it off. Usually this knocks a cold out- at least the worst part.
If it's the flu, I add lobelia tincture for the coughing, because it helps to calm things down and just seems to help with everything. I don't have any Lung Formula made up, but Uny has some if you think you will end up needing it.
What do you mean, the air you are breathing is poisonous?