Laser hair removal, done by a skilled person and one knowledgeable in the differences in skin color, can be helpful for this post-inflammatory pigmentation (PIH) you are more than likely describing. Laser hair removal devices can remove the hair, reduce the inflammatory component and lighten...
You should see a dermatologist as the bumps may be a viral infection. If so they can spread with continued treatment, or with shaving. They can be treated with freezing or a topical medication if it is viral. It could also be folliculitis that needs topical treatment as well. Either way, a...
Your results will probably be minimal if you have treatments spaced out that far apart. I would wait until you are able to stay in one area and have a consistent set of treatments (4-6) about 4-6 weeks apart.