How long before hair reappears?

Generally between 3 and 8 weeks. Less hair regrows and it is generally finer. Eventually some hair never regrows.

How be able to the pain or discomfort be minimized?

A simple way to greatly minimize the discomfort is to press hard on the skin right after the strip is pulled off. To emphasize again, do this IMMEDIATELY after the strip is pulled off. Press down hard in the company of the cushion of the finger or the palm of the hand on larger regions.

Additionally, rubbing an ice cube over the area can do much to reduce the risk of swelling and skin irritation.

In conclusion: Based on your level of skin sensitivity or pain toleration, texture of hair and rate of hair growth, hair removal may be a viable option designed for you.