Need some allergy relief

I have allergies.

I didn’t have any issue when I lived up north. The cold didn’t bother me and the pollen in the air was okay too. Now that I live down south, I am a mess. I carry tissues in my pocket at all times. I am frequently stuffed up, sniffling or have a runny nose. I also sneeze, cough, have an itchy mouth, watery eyes and all the other allergy symptoms. I have read online on what to do and nothing has really helped. I changed from a basic air filter to a HEPA one. It is supposed to catch more dust going into the HVAC unit and make the indoor air quality cleaner. I have gotten ductwork cleaning and I keep my house very clean. I also take allergy medicine. I found that a lot of people recommend getting an air purification system. I found that I could go cheap and get a portable air cleaner that just sits in my room. That would be kind of nice to not have issues while I work or sleep. However, the portable air cleaners are ugly, big and need to be plugged in. I don’t really want people seeing that on video calls. I found that air purification plans that install in the HVAC equipment need to be in the ductwork. They require yearly maintenance and air filter changes too. They also are quite expensive. I am not sure what to do now. What is my best option? I don’t really want the work of a whole home air purifier but I want the benefits.

Space heater