I've been getting over a chest cold, most of the worst symptoms are gone (like the sinus headache and tiredness). However, I tend to have a bit of congestion that hangs around for a couple weeks after the other symptoms clear up.
I found that mucinex (guaifenesin) seems to help me with this since it thins the mucous in the lungs. Is it safe to take this to be more comfortable on longer rides? Is there anything I should be careful of?