Poultice the hoof using crushed linseed or bran with a combination of any of the following; St John’s Wort, Echinacea, lavender or lavender oil. Thuja or tea tree oil. You can also apply an ointment or oil with any of the above herbs or essential oils. Internally herbs such as clivers, calendula, garlic and Echinacea may be used. Apple cider vinegar may also be useful.