Girls, hi everyone! 18 weeks pregnant, got sick, temperature 37 and ru…

Girls, hi everyone! 18 weeks pregnant, got sick, temperature 37 and runny nose, been treating myself for 4 days now, nothing helps, they said only Acqualor medication and vasoconstricting drops should be used, I didn't buy the drops, the pharmacist said it's harmful. Does anyone know how this affects the baby? Or maybe someone who has had the same illness can advise what to do, maybe I'm panicking for nothing? My general practitioner isn't very good, but it's hard to get an appointment during the pandemic!