Sinus Medication Solution

I am 15 years old and i have sinus, i think.
For abt a few months I’ve been taking panadol abt once every 2 days and when i do, i take up to 8 tablets at one time, but i dont take anymore during the day. it gets rid of my runny nose and sneezing temporarily, but i’m concerned about my helth in long term, such as liver damage?