Thanks for the query.
I understand your concern.
The red circle you mentioned could be erythema due to contact dermatitis, fungal infection, enlarged blood vessels like telangiectasis etc.
By clinical examination the exact cause of the problem can be identified and treated.
So, if the lesion persists, better to consult your doctor and get evaluated.
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.