Will age spots reappear after removal?

Age spots are increasing on my father's face.

Since you are elderly, you may not be very receptive to dermatological procedures.

I hope you consider removing the age spots because they make you look older.

Is the pain from removing age spots comparable to IPL treatment?

Would a removal procedure be too burdensome for someone who is very elderly?

Will the age spots come back if I don't use sunscreen?

Because it is my father who does not act as my doctor.

I'm also worried about what will happen later.