 When you schedule your free estimate, same day service, expert technicians and a job done right the first time. Eat service today. Visit HorizonServices.com and Horizon is on the way. My wife and I both, we ended up mildly sick for a few months and the nasal congestion was probably the worst part. I had like a post nasal drip, just super congested all the time. We were taking everything we possibly could, but nothing really worked.