Answer
Not necessarily. Itching can continue for several weeks because the skin remains allergic to mite material after the mites have died.
Sources for this answer
- Permethrin 5% w/w Cream — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.