Yes, so do I Caroline. The idea that you can somehow just neutralize residual effects of Carbon monoxide poisoning by taking a homoeopathic version of it is ill-informed.

It’s a bit like thinking you could give Bitumen 30C to every kid who falls off a bicycle and scrapes their knee on the road.

The usual kinds of residual effects from acute to chronic poisoning are listed as:
“Flu”, Chronic fatigue syndrome, viral or bacterial pulmonary or gastrointestinal infection, excessive heat, etc.
The tip-off that these conditions are the result of poisoning is that similar symptoms are detected simultaneously in more than one person, and that they decrease upon removal from the environment.

All of these kinds of residual effects are well managed within the scope of homoeopathic treatment.

However, all residual effects need to viewed on an individual basis according to how they manifest in each affected family member. Each person’s constitution will, depending on various levels of health, be impacted in their own individual way. Therefore a routine prescription of Carbon Monoxide 30C simply does NOT fit the bill.
We all wish it was that easy, but it's not, and a good homoeopath will address each member of the family as an individual case on their individual signs and symptoms. Having said that I don't personally feel that your situation would be all that difficult to treat unless your individual health was greatly compromised beforehand - and that is what a good homoeopath would investigate as a standard proceedure. Nor would they want to ignore or instigate a complex of dissimilar diseases by not evaluating the WHOLE case from the beginning. It's worth getting it right from the start, this saves time (and money) in the long run.

Good luck.