Loose motion can be due to bowel infection or some times drug induced.The most important aspect is to take plenty of oral liquids / ORS powder 2-3 teaspoon in one glass of Luke warm water for 3-4 times a day.Probiotics help a lot in this respect. There are certain anti secretory medicines and antibiotics used to combact intractable diarrhoea. Chronic diarrhoea happens mainly due irritable bowel syndrome which has a totally different line of management.Be on semisolid / liquid diet. Feel free to ask any further quary related to this. if this bleed is not associated with pain than is generally due to piles and quantity of blood should be more. If this is associated with pain and quantity is less than this is due to fissure. At times there may be sigmoid colitis which leads to cramping lower abdominal pain and may cause passage of blood in stool. Other rare causes are presence of polyp growth Or a malignant growth. You should avoid constipation, as this is the cause for piles/ Fissure. it's better to get evaluated , a short scopy done to rule out the underline problem