Is it feeling mushy inside the ring when you work a finger over it while outside the ring is firmer ?
Wash hand well afterwards in case it is ringworm.
Well, the mother had prior conviction for assault. I guess she thought she was still a major in the red army. These two certainly were not pansies “harassing “ the neighbors. More like psycho warfare.
Looks like a recluse bite. I had similar years ago. Did not get on antibiotics. A 3 inch oval shaped area under the skin necrated and formed a pus pocket which i drained. Still have the scar on my arm.
Get on the antibiotics.