Unresolved issues or an open emotional trauma that has not had time to heal.
Infected wounds represent the festering of resentment and bitterness. Remember that these negative emotions produce nothing positive, and only hurt you. Find a constructive outlet for your feelings instead.... The Language of Dreams
In general, wounds on the body in dreams are the result of painful experiences that affected you deeply. Bruises may make a poignant statement that you feel bruised by an argument, a betrayal, or an abusive situation. Open wounds in a dream may suggest that the emotional pain is on the surface and may need attention and a remedy to heal.... Ariadne's Book of Dream
wounds, bruises, ulcers, sores etc. appearing on the body symbolise wealth that will be acquired by the observer of such a dream.
The extent of the wealth will depend on how old such wounds, bruises etc. Are, Likewise, any obesity or swelling means acquiring of wealth equal to the extent of the obesity or size of the swelling.... Islamic Dream Interpretation