the alcohol will not help with delivery, most likely it wont do much in minimal doses.
there is no difference except minimally faster digestion for the liquid
Alcohol is usually just added as a preservative.
Small doses of alcohol will dilate blood vessels and increase peripheral circulation, which can only do good.
If it is too much alcohol or you are very sensitive to it, meaning you experience drunkenness. Then you can evaporate the alcohol at 78-80C if you have the equipment to do so. Temperature controlled heating plate or normal heating plate and a glass thermometer inside the pot.
Be aware that after removing the alcohol the liquid lecithin may go bad rather quickly