To be sure about liver damage, get a blood test done to check your liver enzymes. If they're elevated (as mine are) you'll have to back off the pills. But
aspirin isn't known to cause liver problems,
acetaminophen screws up your liver. Aspirin can tear up your tummy.
I've taken pain relievers (OTC's and narcotics) most every day since I was 19. My liver enzymes are just slightly elevated. I'm 50 years old.
As I said, a blood test will let you know. You should have one as a baseline to follow through your life, also.
PQ
Last painkiller used: 9/25/05
Suboxone started 9/26/05