is a inflamatory bowel disease its cause is unkown (Idiopathic) and is a chronic disease but can be controlled with drugs.If there is a family history then it is more common and some food allergy
or infections research is going on to find the cause it is more common in nonsmoker? Some blood test like HLA B27,HLA DR-2 has been found to be associated with the disease. You are taking correct treatment Mesalazine (Vegaz OD). As disease may remain stable for long time some time it may become severe that steroids may be required . If Milk allergy
or lactose intolerance
is there avoid milk .If you have loose motions do not take OTC medicines. Be in touch with gastroenterologist.Take care of nutrition like vitamins keep your Haemoglobin
level to optimal level.Keep a watch on liver function kidney function and blood clotting.
All the best.