It seems like you are suffering from folliculitis(infection of the hair follicles) which is very common after the waxing.
For now on I would recommend to apply Bacitracin
ointment two times a day for 5-7 days and please don't pick or squeeze the pimples
as there is a chance if cross infections through nails and fingers.
You can also use 1% Hc cream after you have done the waxing in future,it will prevent the inflammation after waxing and will prevent developing folliculitis.
If you think that Bacitracin is not helping then you may need to see your GP as he can prescribe some oral anti biotics.
I hope that will help.
All the best.