At this juncture, pimarily LU11 (yin channel's jing-well point, noon-midnight connection) is the option. BL67 is second in the line.
In the Ling Shu you will find: "In winter use the jing-well points."
There is only a limited application of this rule in pathological conditions. However, for a preventive seasonal treatment it might be a good strategy.
References to the Classics (Chapter):
[1] Ling Shu (44)