Botox inhibits the communication between nerves and muscles. It does so by blocking the release of certain small chemicals (neurotransmitters) that nerves use to signal a muscle to contract.
The onset of action of Botox varies from person to person. Botox first has to bind to the nerve before it can enter the cell. Some patients bind Botox faster because they have a greater number of these high affinity "binding sites" on their nerves. After binding to the nerve, Botox enters the cell to prevent the release of the chemical messengers that cause muscles to contract. When the muscle can no longer contract, the wrinkles soften and relax.
Typical onset of Botox is between 24 and 72 hours, although some patients may require up to 5 days to see a result. The maximal effect of Botox occurs at about 10 days after treatment.
While microdermabrasion features little downtime and is readily available, it will not unfortunately give you the best results if you have deep scars.
Deep scarring implies injury to the deeper layers of skin- layers that microdermabrasion do not address.
Full Dermabrasion is better for scarring that is raised and needs to be evened out or for deep scars that have the ability to form new collagen and "fill out" the scar.
Lasers can also be used for some forms of scarring and would yield better results than microdermabrasion.
If the scars are really deep or "ice pick" scars, then a filler using collagen or hyaluronic acids could be used to "plump up" the scar, making it blend in better with the surrounding skin.
Lastly some deep scars can be revised with minor surgery - this will depend on scar location, size, texture, etc.
Best thing to do is to sit down with a Board certified and experienced Physician who can examine your scars and go over all the best options that apply to your case.
Microdermabrasion is great for maintaining healthy skin but not so great at deep scar removal.
Acne scars are the result of long time infection and inflammation of the skin’s glands; the result is an uneven surface with peaks and valleys.
There are many treatments for acne scars, and filler injections, such as collagen, are often helpful. Fillers help to raise the valleys so that there is less of a depression around the peaks. This means less shadowing and therefore the appearance of a smoother skin surface.
Collagen fillers, which can be of either human or bovine (cow) origin, are safe and effective to use if there is no patient allergy present. The injections usually last from 3-6 months, and can be repeated when necessary.
Other fillers, such as hyaluronic acid, calcium hydroxylapetite, and polymethylmethacrylate beads, are also available for this purpose. The duration of these fillers is from 6 months to permanent. Each substance has its own advantages and disadvantages.
Still other treatments for acne scars include dermabrasion, laser resurfacing, and chemical peels. A qualified physician, with experience in all of these methods, should examine your scars before helping you choose the appropriate course