Can deep horizontal neck wrinkles be fixed with fillers or Botox? ㅠㅠ

My neck skin has always been on the thinner side, but whether it's genetics or my pillow habits, the distinct, deep horizontal wrinkles on my neck have become so pronounced that it causes me massive stress every time I look in the mirror. No matter how intensely I try to maintain facial elasticity, having these prominent wrinkles makes me look so much older, and it drives me crazy because I'm constantly self-conscious about getting dressed. I've heard that neck fillers or Botox are super effective for smoothly filling in these natural-looking wrinkles, so I'm seriously considering getting a consultation at a dermatologist! However, since it's my neck, I'm scared that the injections might be super painful or leave me with bright red bruises, so I can't bring myself to go for it. Please, those of you who have successfully resolved your neck wrinkles and achieved a smooth, even finish after the procedure, share your real advice!