Medical skin patches with a content of essential oils for treating colds, and processes for their production

摘要

Medical skin patches for treating colds by releasing essential oils through evaporation comprising a backing layer permeable to gas and water vapour and a hydrophile and pressure-sensitive adhesive polymer matrix connected to the backing layer. The matrix contains at least one essential oil, at least one hydrophile polymer, at least one substance having an adsorbent effect or/and at least one substance having an emulsifying effect, and at least one pressure-sensitive adhesive polymer. The water content of the matrix is less than 5% by weight, or even less than 1% by weight.