A, For Homecare/Aftercare,you can use our SQT Recovery Set ,(it is designed for 5 days per box. Twice per day(Mix powder and liquid. morning, and night). We found many clients do not have recovery product after treatment. so we designed it. B, You can recommend your own brand functional skincare products or recovery cream to improve skin but without alcohol & irritation. You can also use it in combination with led light therapy. the effect is much better because the sponge needle can open the skin channel to promote absorption, for example, if you want to treat chloasma, hyperpigmentation, you can apply some light spot products after use for better effect.