Do you have an itch, or put it another way, to you have to scratch the area on a regular basis.
In essential terms most of the bumps are natural to this area of the genitals and they are most likely simply Sebaceous Glands - you may be noticing them more than usual because they are irritated. Irritation is most often simply caused by what the skin is in regular contact with, and in pure-numbers terms this is soap and shower gel that is the cause. What do you apply to the area in terms of creams or anything like that?
Do you shave the area?
The largest bump looks like it is the result of an ingrown hair and that it has had the top picked or scratched off - these are sometimes difficult to deal with. Often men squeeze them and when an infection is present this produces a white puss which is as a result of the infection.
First you need to deal with a potential infection being present - you need to use Liquid Antiseptic that is used to treat skin problems such as insect bites, grazes and cuts …