We not unfrequently see in mumps and in gonorrhoea a metastasis of the disease to the testes. The swelling comes on suddenly and is attended with severe pain.

When the swelling arises from an external injury Arnica will produce relief. Aconite is indicated where there is heat and pain, in alternation with either Mer-curius, Nux-v or Pulsatilla.

Dose

A powder, or three drops, in a glass half lull of water, a tablespoonful every three hours. Apply a compress wet with cold water, or Arnica and water.