“The Illustrated Herbal Encyclopedia” by Brenda Little
“Lavender vinegar; dabbed on the temples and forehead, helps to ease a miserable headache”.
Lavender flower spikes
* Steep flower spikes in white vinegar in a jar in a sunny spot for a week, shaking it once a day.
* Put a fresh lot of flowers in another jar and strain the vinegar in the first jar over them and leave the new jar in a sunny place for a week, shaking it every day. Strain through fine muslin and bottle.