Millions of lice in hair without noticing , a firm rubbery small swollen lymph node is there -2 weeks already after the lice is removed-normal?

Head Lice: Besides the visible signs of lice and nits, other symptoms of having head lice include itching, swollen lymph nodes at the back of the head, and sometimes a secondary bacterial infection of the scalp. The lice themselves do not spread disease.

Check for all lice: Check to see all the lice and eggs are gone- do a good search. The lymph nodes which react to foreign infections can swell and take more than two weeks to return to normal size.