You can apply permethrin lotion 1% on your hair as an overnight application as there might be recurrence of head lice because of presence of hair nits remaining(eggs of lice). After that apply flucort lotion 0.01% from next day one time at night for 1 week
Next Steps
Keep your hair dry as wet hair due to washing and also sweat can give rise to itching and problem
Health Tips
Also watch for pus filled boils on scalp as this can be follicular infection