I have one keloid on the chin, and two at back. Could I do picosure for acne scars and pores?

Acne scar treatment needs a combination approach for improvement.  For the best results, one should target the acne scar type.  As everyone has a unique pattern of acne scarring, the best solution is a tailored one.  Typically you need fillers like bellafill and sculptra for atrophic indented type scars with or without subcision.  Subcision for depressed tethered scars.  Vascular lasers like yellow laser, aerolase, excel V or IPL for redness or thick scars. And lasers such as fraxel, erbium, co2 or fractional radiofrequency like venus viva, skinfinity, intensif or fractora microneedling RF for textural issues and superficial scarring.  Deep ice pick scars and narrow box car scars are best treated with TCA CROSS and punch excision.  All lasers are combined with microneedling and PRP to get even better results and improve healing times.   The majority of patients will have a collection of different scar types, and hence a tailored treatment plan is needed by an expert physician.  It is never about the laser or product that gives the results, its about the expert behind the equipment that gets you the outcome.  Scars cannot be cured and will need life-long treatments to maintain and build on the results.  For those at high risk for hyperpigmentation (darker skin types or asian or hispanic or mixed ethnicities) we alreayd pre-treat the skin with cosmelan or enlighten lightening peels to prevent complications from energy-based or chemical-based treatments.  Best, Dr. Emer. 

Keloids have a variety of treatment options depending on their size. Very small or early keloids can be conservatively treated with pressure therapy, steroid injections, and or silicone therapy. Larger keloids may be better treated with surgical excision together with steroid injections to prevent additional keloid formation. Regardless of the treatment plan, keloids frequently recur and there is no guarantee that they will be gone permanently. For the best treatment options, it is important to visit an expert for an in-person examination. Hope this helps!
Johnson C. Lee, MD 
Board-Certified Plastic Surgeon