If you have sores on a body, then such dream symbolizes the hard feelings you are keeping suppressed from others. Make sure you let them out and do not keep them in. Make sure you pay attention to the part of the body and where the sores where located as it would indicate the situation more clearly, as for example the sores that are located on the area of the chest, shows the worries you are having about something.
Dream dictionary: Chest 2 dream meanings
…(Chest | Coffer) In a dream, a case represents a wife, a beautiful woman, one’s house or one’s shop. In a dream, a case also represents marriage for an unwed person and prosperity for a poor person. A suitcase in a dream means travels, or it may represent an ambassador….
…(Venter) The surface part of the body between the chest and the pelvis in a dream represents one’s strength and health condition, wealth, or it could mean poverty. {Also see Body 1 )…