First of a visit a general surgeon who can clinically examine your husband. There is a lot of misconception about anal disorders....every problem in that area is called piles whereas it may be a fissure, or a skin tag. Some of these conditions need surgical treatment as recommended by the doctor after examination and diagnosis. Avoidance of constipation by consuming lots of water and fibrous foods is necessary in case of anal problems but it cannot be the only modality if treatment