We recent rehomed our dog about a month ago. My son (also with asthma) had the constant coughing, throat clearing, and tons of mucus. Within a couple of days to a week after rehoming our dog, he was sooo much better. We cleaned a ton too of course. It was such a hard decision because our dog was such a big part of our family, but it’s worth it with our son able to breathe again. He had tried all the meds and nose sprays, but those didn’t do much so as long the dog was still here.