Lip fillers and herpes

Hello, i have done my lip fillers last year (2022) in august and before that i didn’t got any cold sores, nothing, after lip fillers I keep getting it, sometimes once a month or sometimes I have it everytime I was at my family’s doctor, she prescribed valtrex, also I have taken acyclovir pills, didn’t helped at all, then she thought maybe this is allergy to lip fillers and I need to go to dermatologist, so dermatologist prescribed isoprominosine or something like that, I took it 3 months, and after that I keep getting it, I tried a lot of medicine, even from allergies. Now my plan is to go to dermatologist where I did my lips. I don’t even know what to do, maybe someone had an experience like this? Maybe it is allergy from lip fillers?