These cats, as usual are right on. My take on it is a slightly different angle however. Yes, take some time off of the exercise that causes such stress to your distal tricep tendon. If you are able to, do another exercise, maybe (GASP!) use a machine and build up your tendon strength using higher repetitions for a few weeks(i.e. 2-3 x 12-15). If that hurts, take time off of any direct tricep work until you do not feel pain in that area for about a week and a half.
When it is time to hit up the skull crushers again, use very light weight and go slowly, using the type of scheme set up earlier. And yes, CW’s recent articles may have said to go faster during your reps and whatnot, but that applies to a healthy joint. In your case, a good month in emphasizing tendon strength would be extremely beneficial to you.
Progress slowly, and remember that though you may be seeing people heaving heavier weights up around you in stuff like skull crushers, the time building up the strength of the tendon will allow you to move those bigger weights around in no time.