Thanks for the query,
Apply a mild steroid
cream along with neosporin
This will help in controlling itch,
If there is no actual bleed you dont need to worry much.
If any pus or soreness develop in the lesion then you must consult a doctor.
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.