I am not expert in L-dopa use, but it seems at least possible that it could be triggering your sense that you have bugs on you. Please check with your neurologist right away.
Dr. Rockoff
Forgive me, but I am not sure what you are referring to. If you think you have bugs crawling on you and in your skin, you need to bring one in to show a doctor. You may feel as though your skin is crawling without actually having bugs. I know of no bugs that affect skin and look like "pellet like white round creatures" and "decimate" the eyelashes and eyebrows. Lice can live in eyelashes, but your doctors would have seen them or their nits. Ask them to look again in the groin for crab lice.
Best.
Dr. Rockoff
alsso, I take lithium and early onset parkensons (l/dopa) I am 54