after using an effective scabicide (drug that kills scabies) the insects will die quite rapidly however the itching and irritation can persist for weeks. even dead insects under the skin can cause a sensitivity reaction so try and avoid scratching and digging (can cause a secondary infection) use an anti-itch medication (antihistamine) and even a topical steroid cream. things should settle down soon. this is why (untreated) scabies was often called the "seven year itch". hopefully you will be better long before this.
how long does it take for scabies bugs to die under your skin after taken stromecol