>>11432840I do recall reseach which said that thinking about an area increases blood flow to it.
But does it also mean improved venous drainage? Conditions of inflammation, contusion, swelling/edema, etc, may not benefit from the possibility of improved flow to an area if the stasis of fluid in the area prevents blood getting there. It's why lymphatic drainage techniques start proximally, that is, closer to the body. There's no point trying to shove fluid into a congested area.
But yes, good circulation facilitates tissue healing, consider peripheral artery disease in smokers and/or diabetics and their problems with issue healing. However, in the 'normal' patient, do they get enough blood in their usual circulation to optimise tissue healing, or would increasing the flow improve it? That's the assumption in your question, that more is better. Sometimes more is just more.