Microneedling has been studied for the treatment of acne scars. Overall, the results are pretty good as it is a form of collagen-induction therapy. Your best treatment will be with the addition of platelet-rich plasma (PRP) which has shown superior results to standard microneedling. If you are on a budget you could try several standard microneedling sessions. The best outcomes, however, will come from PRP microneedling.
At 7 months of treatment with a twice per day minoxidil application your probably will not get any additional significant hair growth. However, the minoxidil is likely keeping the initial small hair growth viable and is also likely preventing the loss of additional hair. The addition of a second agent such as PRP injections/microneedling to the scalp can be used to enhance your current result.
The short answer is yes. The concern with metal in the body with Emsculpt treatment is the metal heating causing an internal burn. As long as the area of the body being treated is far enough away from the treatment site there is little to no chance of injury.
