Yikes! Your dog got tangled in a barbed wire fence, fought with the neighbor's dog, or impaled himself on a sharp stick, and now he has an open wound that the veterinarian has suggested stay open to drain, as stitching is not currently an option. But your dog needs bathing; he has blood all over his coat and debris from his accident. Also, he stinks, because he was so stressed during the incident that the release of natural chemicals on his body has caused him to smell pretty funky.
Since you will need to keep him contained in your house while he recovers and to provide treatment, you need to do something about his dirty, smelly condition. How do you bathe a dog with open wounds though? Will a regular bath cause problems for his wounds? Yes, regular shampoo and the handling and mechanics of your usual bathing procedure can irritate and cause further damage to open wounds. But there are solutions for cleaning up your patient. A little adjustment is needed, but soon you will have your injured pup looking and smelling much better.
If your dog is injured, he may have experienced quite a bit of stress during the incident that injured him. He may be anxious or traumatized by the incident, or experiencing pain from his injuries. Either of these factors can make a usually docile, bath-loving canine unpredictable, or even react aggressively to handling for a bath. Be aware of this and go slowly to see what your dog is comfortable with. Take precautions. Also, be aware of your dog’s injuries and compensate for them when handling and moving your dog so as to cause minimal discomfort.
If you need to bathe a dog with open wounds you are going to need to be careful, extremely careful. You do not want to contaminate the wounds with bacteria and dirt from your dog's body, or get irritating detergents or bathing products in the wound. Use water only, and spot clean to prevent wounds from further damage. Use your fingers to remove debris as necessary, and be gentle and patient. Your veterinarian will give you specific instructions for cleaning open wounds that may involve saline solutions or surgical preparations, follow instructions closely to heal your hurt hound.