Elbow pain from poling

I have had occasional elbow pain for a few years, but it seems to be
under control now. I never took expert advice, but the things that I
have done, which I think helped me, we
Remove the immediate cause. For me, that was trying to be tough about
not using more grip wax for my first few times on snow one winter. The
resulting slips caused me to catch my weight on my poles, giving me
sore elbows.
Avoid aggravating it: be aware of how long I can go before it gets
sore, and stop short of that.
Strength training: dips and press-ups, and double-poling - always
stopping short of making it sore.
Rest and ice if it does get sore (I wish I had done that at the very
start of it).
I did not deliberately make any changes to technique, and attribute
suffering less mainly to the more deliberate strength training that I
have done since the problem started. Changing technique or your gear
would probably also make sense. I used to get a very sore back after
every mass-start race, until a coach suggested a change to my double-
pole technique; that was so long ago that I don't remember what the
change was, but I am also careful to do plenty of strengthening
exercises for my back now.
Hugh