By compressing the affected area, the swelling in the affected area can be decreased. Compression can be done with nothing more than just an elastic bandage. When wrapping an affected area ensure not to wrap the bandage too tightly as this can be cause further swelling in the areas below the bandage as blood flow is restricted. The signs which may indicate a wrap is applied too tightly are numbness, tingling, increased pain, coolness or the more obvious of further swelling below the bandage. Wraps are generally used for around 48 to 72 hours following an injury and if the pain persists it might be a good idea to speak with a doctor to ensure that no further damage was caused from the injury.