My experience was one much the same as yours. After using permethrin with bad results this is what I found:
-The Permethrin definetly makes these things move more
-It made me feel sick
-I felt less itchy in terms the active itching kinda went away but returned 3 days later
-it made my lesions even worse and they hurt
-never cured my scabies I ended up curing mine with sulfur creams and soaps
Well if you want to determine whether you still have active scabies or post scabies you can tell by the itch, the evening itch which feel active or like a buzzing feeling, this is a sign of active scabies that you can tell from. Cause they say look for new burrows and track marks but thats nearly impossible to see unless you have a scabies pocket microscope.
By the way you can by the sulfur soaps and creams online, here is the link:
Scabies Sulfur Creams and Soaps WebsiteHope this helps
P.S- You know your getting over scabies when day by day things continually improve and that buzzing itching is gone, you will still itch during the daytime but it will get better and better as this is just your skin being allergic to the dead mites and their debris!