As for the use of laxatives are mostly dilute it, I think this is normal.
Personal advice, it is best not to use intestinal clear tea, easy to cause severe abdominal pain, you can choose the cattle yellow detoxification tablets (although also has the function of intestinal cleansing, but the nature of the drug is relatively mild)
As for the other, constipation can be a spoonful of sesame oil every day to drink, eat a little bit of fiber-containing vegetables, and drink a lot of water stools will not be so dry.
Said face pimples, but also may be your recent too much work, face radiation too often, on fire and other uncertain factors.