Does heavy alcohol consumption slow wound healing?

Yes: It depends a little on what you define as "heavy" consumption. It is known that alcoholics have certain nutritional deficiencies that could impair wound healing potential.

Yes it can.: The direct affects of heavy alcohol intake on wound healing are less than the indirect affects such as poor nutrition and neglect of a wound due to inebriation. The immune system is know to be diminished in those who are heavy drinkers.