HELP!!!! I have a rip in a canvas painting!!

I have used some canvas glued on the back of the rip and touched up the front of rip with a little gesso spread with the finger. or in your case touch it up with a fine brush of the painting's colors.

Contact a local art gallery.

I did as Darvel Silda suggested. Depends on how valuable the painting is. It cost me $800 but the nasty tear was repaired by a curator who did this work as a sideline. The pic was a keepsake from my uncle so had great sentimental value. Have never regretted the expense.

Or contact a local museum if there is one nearby to where you live.

They should be able to refer to on to where you might get quality repairs done.