Infrastructure will definitely be effected. It’s the same where I live, the weather has been nuts lately. This stuff is happening collectively around the whole world and yet we still have people acting like it’s business as usual. Unfortunately, nothing will be done until something catastrophic happens. And by then, it’ll be to late.
You seem like you’re already doing everything you can to treat your symptoms. As Kolanaki said, there is no cure for the common cold. I’d continue getting as much rest as you can before your vacation. My colds usually take atleast 7-10 days to fully go away and that’s with proper rest. Sometimes I’ve gotten lucky and only had symptoms for a few days. If you have a sore throat, throat coat tea helps as well.