These are called pearly penile papules and are nothing to worry about ...
They lubricate the glans.
Some men only have one or two papules ; others have a ring of them !
Sugaring is an Arab technique for hair-removal (and they are very hairy).
Threading is where they use a thread wrapped round their fingers to pluck out excess hair and is meant to be very effective.
I think threading is Indian.
Regular plucking in time weakens the hair follicles and the...
They DO do patch tests to test for allergy or extreme skin sensitivity and are very strictly chaperoned ...
Home kits are another possibility .
Have you thought of sugaring and threading (Arabic techniques) which are gaining favour ?
In the UK (at least) there are teaching classes at beauty colleges where they are always looking for guinea pigs.
The tutors are hightly-skilled and charges minimal.
You cold get a free wax or risk (?!!) electrolysis .
Who knows, you might even opt for a back, sack and crack wax !