Thanks for the query,
You might have developed an infection on scalp
or in ear.
These nodes have swollen due to that.
Please dont try to penetrate it.
It might get severely infected.
You need treatment with antibiotics.
Please meet a dermatologist
for exact diagnosis.
Let me know if you have any other doubt.
you can ask a direct question to me on this forum, following the below link.
Wishing you good health,