I Have Suffered From Constipation From A Young Age Which

I have suffered from constipation from a young age which eventually resulted in anal fissure and one large skin tag. In my adult life (I am 28 now) I have learned to eat a more plant based diet along with higher intake of water and plenty exercise. I haven't had bleeding or painful stools for years after my doctor diagnosed me with a fissure and subsequently found that I do not process red meat well roughly ten years ago.
My question is how and with what can I treat and shrink my anal skin tag? There is no pain, but it's annoying and embarrassing.
Thank you.