Increased vagal tone: There are three different nerves that innervate the nasal mucosa. The vth cranial nerve for pain and 2 autonomic nerves, sympathetic and parasympathetic. The latter nerve know as a branch of the vagus stimulates mucus production. In your case, this is unusual because excercize usually stimulates the sympathetic nerve which inhibits mucus. Nevertheless, i would not worry about this. Atropine.
Answered 2/13/2015
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