Welcome and thanks for your question
I would be pleased to help you with your Question
No the bumps are not permanent.
It might be infected secondarily . I would suggest you to show a Dermatologist
and not ignore it as it might get infected and leave behind scars
which can become permanent if not treated on time .
You can try Vitamin C
based treatments for the stretch marks
. The best approach would be to meet the Dermatologist.
Thanks and Take care