I too get constipation, my family think that the medications cause it. Its horrible - I can be sat on the loo for hours
Treatment -

Get more fiber or bulk in your diet.


Regular physical activity is an important component in bowel health. That will be hard.


Drink plenty of fluids, especially water and fruit juices. Drink 6-8 glasses of water daily in addition to your beverages with meals.


Go to the toilet at the same time every day—preferably after meals—and take enough time.


Use nondigestible sugar (lactulose) or specially formulated solutions.


Avoid using over-the-counter laxatives. Try to avoid laxatives containing senna (Senokot) or buckthorn (Rhamnus purshiana) because long-term intake may damage the lining of your bowel and injure nerve endings to the colon.


Try a daily exercise such as the knee-to-chest position. Such positions may activate bowel movements. Spend about 10-15 minutes in this position. Breathe in and out deeply.

Not sure about what foods help