Unfortunately I know nothing about goats or Orf virus. From a limited search I found that it is asked limiting condition and that preventing secondary infections of the lesions is important. I Also found this Treatment of the scabby lesions with herbal remedies may help. Of these, plant oils obtained from sesame, castor, juice of Calotropis procera and Euphorbia spp. have been found to be effective in the treatment of orf infection in India and African subcontinents. Whereas in France and Netherlands, Ilex aquifolium is used for curing and preventing contagious ecthyma (Nandi et al., 2011). There is an Ilex spp used in TCM that may be available and Sesame seed oil and castor oil are commonly available. As for preventing an infection in you , wear gloves when working with your goats, take some immune enhancing "antiviral” herbs (may or may not help) such as Andrographis, Honeysuckle flower, Elderberry.