Like the girls have said, increase fibre and more importantly, water. If you have lots of fibre but no water, you actually get constipated! Try taking Lactulose syrup for a couple of days while you've got he haemmrhoids to help with the constipation and take the "pressure" off the bowel movements. Either Anusol or rectinol will help to shrink the roids. Suppositories work better than the oint. Try putting a little lubricant on the suppository before inserting if the pain is really hard to bear (sorry if TMI).
Rectogesic/Anusol wipes or witch hazel on a cotton pad will also work to shrink and offer pain relief. Take a sitz bath daily ( 1/4 cup epsom salt in a few inches of warm water in the bath tub and immerse your bum, or put a basin of warm water with epsom salt in the toilet bowl and sit over it.
Try not to sit or stand for long periods, This puts pressure on the anal sphincter. Go for a 20 min walk daily.
Bookmarks