Applying daisy extract to your elbow at night may help, as will a number of other anti-inflammatory creams (...esp when used during a lunar eclipse

).
Depending on the cause of your problem, strapping (...no, not as in whipping...) may help.
IMOH you may be best trying to determine the cause of the problem (the inflammation) (-apart from the obvious...) For example, does it always happen, is it both arms or just one, does it occur in all conditions, what makes it worse, if you have multiple kites/bars, does it happen with all etc. If not a simple problem with one elbow you might need to consider your riding style/biomechanics for a longer term solution.