Wash about a handful of elder flowers and mix six tablespoons of boiling water into a large jar. Leave it overnight and sieve the next morning. Mix three tablespoons of this water with three tablespoons of rose water, three tablespoons of hitch hazel and one teaspoon of boric acid. Shake all the ingredients and use the tonic daily.
Orange and lemon tonic
Put one slice of orange, half lemon and two tablespoons of castor sugar into a pan with a cup of milk. Heat the mixture to the boiling point. Allow it to cool and store in the refrigerator.
Take two handfuls of dark, scented rose petals and put them in a glass jar. Add one litre of water and 200 grams of sugar in the jar. Set aside the mixture for two hours. Shake the mixture and strain it. Store the tonic in a cool place.