Thanks for the query.
These spots are harmless.
They are called schamberg purpura
It happens due to mild damage to capillaries.
Dont worry apply some moisturizers,
You will be fine.
Please meet a dermatologist
if it persists.
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 a good health.