Salves are useful preparations for regular application, as they are in the form of a cream. These are more complicated to make, and are best bought. Common herbs that are prepared as salves are camphor and peppermint for aching muscles, calendula for wound healing and fungal infections, and comfrey or arnica for bruises and broken bones.
Most Happy Herb Shops sell a few different salves that can be recommended to people if they require regular application of a herb externally for an extended period of time.