some post treatment breakouts can happen and arent necessarily a sign that anything went wrong, though its worth paying attention to how it progresses. sometimes this happens because the micro injuries temporarily disrupt the skin barrier which can occasionally bring underlying congestion to the surface faster than it would have otherwise, especially if you were already prone to breakouts. it could also be a reaction to a product used during or after the session, like a heavier serum or moisturizer that didnt agree with your skin. if the bumps are small and not accompanied by significant swelling, pain, or spreading redness its likely just part of the healing process, but if it seems to be getting worse rather than better after a few days its worth reaching back out to your provider to get it checked