Wounds in a dream usually point to past pain that's still tender, whether or not you've consciously been thinking about it. A wound that's healing can reflect real progress you've made, while one that reopens often signals vulnerability around something you thought was already fully resolved.
When a Planet is within five degrees of the cusp of any house, it shall be accounted to have virtue in that house though actually posited behind the cusp in another house. - Cardan Girolamo (1501-1576)