9 years after under eye and nasolabial fold filler, could it still cause an infection this far post op?

I got filler under my eyes and nasolabial folds in 2016. Didnt like the result but chose not to get it dissolved because of negative reviews here about hyaluronidase, which doesn't distinguish between natural fat and filler resulting in dents and a sunken hollow wrinkled effect. AlthoughI had opted for restylane which is supposedly a temporary filler, mine never dissolved all these years and i can still feel it. The issue now is I have a hard pain on the site of the filler. Is it infected?