Anyone that has ever battled pimples, from mild to severe, knows first-hand how anything put on the skin can have a great impact. It could encourage the breakouts or help tame them.
With manual shaving, you're bound to use at least one product- the cream or gel. So if you're prone to pimples, it's good to check the labels when adding to your shaving kit and try to choose ingredients that are more helpful than harmful. See: Shaving with Pimples.