Hi, thanks for your query.
I appreciate your helping spirit.
With the information provided it is difficult to tell exact diagnosis.
You seem to have possibly developed contact dermatitis
Or it may be a bacterial or fungal infection
Images of the area could have helped.
You may take oral antihistamines for itching and avoid scratching as it sets up a scratch itch cycle which complicates the condition.
You may consult a dermatologist
for exact diagnosis and treatment.
Hope this helps you.