I made a homemade hand cream from coconut oil, aloe vera and emulsifying wax (bees wax). One Tbsp of each, stirred together in a bowl over a pot of hot water. Each night and morning I would put one drop each of lavender and tea tree essential oil in the palm of my hand - and half a tsp of my coconut hand cream. I would massage it slowly and firmly and gently onto both hands. The massage would take about 5 minutes. I paid particular attention to my nail beds, and finger tips. The chilblains were terrible, but after a week of this my fingers were warmer, healthier and without pain. I wore cotton gloves to bed, at night, to allow the cream to better absorb.
I am so happy with the result. I'd tried all sorts of other things prior to this - with no result at all.