Hello,
Welcome to healthcare magic.
From your history and description, it seems to me that you could be having post scabitic itch. It occurs after completing the treatment of
scabies as an
allergic reaction to the scabies mite products.
You do not have to use re use permethrin.
You could apply a cream containing Crotamiton-
Hydrocortisone combination 2-3 times per day on the bumps.
You could also take an anti
histamine like
Benadryl at bedtime to provide relief from itching.
I hope you have washed the bed clothing as well as your clothes because these could harbour scabies mites which could re infest your skin.
I also hope all your close contacts have been treated as they could re transmit the mite to you inspite of you having completed the treatment.
If close contacts have not been treated, I suggest that you treat yourself and all the close contacts simultaneously with overnight application of permethrin.
Hope this helps you.
Take care.