Hello and thank you for posting your query on HCM
It appears from your history that you have a sensitive skin which is prone to develop eczema
Just observe the symptoms for a while.
If they do no disappear spontanaeously, then you may have to refer to a dermatologist
and you may need medication.
Appearance of such a problem make you more prone to re-develop after trivial trauma.
However, it can be controlled by medication.
Thanks again and take care