Thanks for the query,
You might have developed eczema.
Your description matches with this.
It presents as a oozing itchy lesion.
It is an allergic condition.
You might have developed allergy
to a particular thing.
Apply a mild steroid
lotion like desonide
Also take an antihistamine tablet.
This will give you some relief.
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 a good health.