I believe your dietary habits and nature of food you take is improper along with another fact that have a long sitting. Have high rouphage diet and avoid fast food exercise regularly have lot of water. develop reflex by having a glass of water and going for toilet at the same time.Amongst herbal medicines we have to choose depending upon severity from the following order:
sat isabgole- Gulkand-trifla- jang harar/ shiva kshar pachan- panch sakar/ kayam churan--icha bhedi ras- combinations of above medicines-enema
but best advice is more rouphage / fibrour rich diet and more exercise and developing of reflex.
Dr. Rajesh Lakhanpaul