Nettle in, dock out, Dock rub nettle out!
If a person is stung with a nettle, a certain cure will be effected by rubbing dock leaves over the part, repeating the above charm very slowly. Mr. Akerman gives us another version of it as current in Wiltshire:
Out 'ettle, in dock, Dock zhall ha' a new smock; 'Ettle zhant ha' narrun!