That would be personal preference. Everyone is different.
Rest and stretch. Try Tiger Balm or Ben Gay if you need to mask the pain for a sporting event.
yes
you wash it with soup and water
no it is not natural for him to do that.
For the Win - 2011 How to Wax and Shave Your Chest 1-33 was released on: USA: 27 September 2011
Yes, any body hair you wax will eventually grow back.
One of the fastest ways for someone to remove their chest hair is to have their chest waxed or either to wax their chest themselves. Chest hair removal can be quite painful.
if you have a wetsuit it best not to wax a bodyboard because the rubber part of the the chest part on your wetsuit gives you grip. If not then get ordinary sufboard wax and rub it in so it make a diamond pattern
John Ahrens
Chest hair growth is controlled by hormones and genetics, so there isn't anything you can do to promote or inhibit it. You can of course shave, trim, or wax unwanted chest hair.
take off the wax and rewax it
No there should not. When you wax you pull the hair completely out of the follicle.