I have a laser comb that I used on my thinning hair. After having SMP should I not use this device any more?

It is best to ask your surgeon about post operative care as each doctor has their unique regimen.  Concealers can be applied sooner but check with your doctor.

There is no problem to use minoxidil after your scalp pigmentation treatment. Once the pigment is stable which takes around 4-7 days for most after each session. With any topical application if you feel any negative sensation stop or reduce your application, or in sever cases seek professional...

SMP eligibility is typically dependent on how stable your hair loss is and also if you have enough hair to camouflage the pigmented dots applied, when having it done to give a look of added density.  In my opinion the minimal hair at the hairline and frontal/temporal regions of...