Hello
Thanks for your query on HealthcareMagic.
I carefully read your post and able find out your point of concern.
Don't worry i think it's not a serious issue to get worried.
It is a draining lymphnode, that drain the ear and part of
scalp. Normally the lymphnode remain impalpable, it become palpable when the draining area became infected or due to carcinogen.
As far you mention that the lymphnode is painless movable and not hard so i can say it's simply due to infection in the draining area.
If there is earache or scalp infection then try to take symptomatic treatment.
If it became larger, painful, fixed,any kind of discharge from it you should visit a doctor to find out the cause by doing FNAC or
biopsy.
Until or unless any one of the above feature arise stay happy and give time it will come back in normal position.
Hope it will help you.
Wish your good health.
Regards
Dr. Atiqul