Although sometimes these skin tags
near anus can be due to no complication but on many occasions these skin tags are due to some complication like hemorrhoids,anal fissure
etc.You require a visual inspection of the area by a doctor to see whether it a skin tag or a anal wart.You also require proper examination to look for hemorrhoids,anal fissure,anal fistula
or sometimes skin cancer
The ultimate treatment would be to remove it surgically and sending it for histopathology examination,since rarely it can be cancer also.
Very frankly speaking,there is no home remedy to remove it.