What should be done about ficus oozing sap?

Oozing sap on a ficus plant usually means that it has scale, the pest.

Look for tiny bumps along the branches. They will be brown and will actually look like little nodules that you might think are just part of the tree itself. If you can scrape it off easily with you finger nail, then it is more than likely scale. The bug is under this little covering, which it makes to house itself. To get ride of them naturally, spray the entire plant with a weak, mild soap solution. You can also try to remove them with a soft cloth while the soap is on. You can also add a very weak, mild bleach to the soap and, or, cayenne pepper. You will need to spray continuously every day, every other day, until you no longer see any of these "nodules". Good luck! Patience is the key to saving these plants. Also, if possible, separate from other plants during this process.