Rashes are spreading throughout my body, is it ringworm?

This happened to my foot and rashes are spreading throughout my body, should I go to the ER? I don’t have health insurance but I’m very scared that this may be an infection. I originally thought it was a ringworm but it’s not. I have dermatitis and would get ringworm shaped dry patches which I was treated for in the past. This however, spread bigger so I thought it was a ringworm and applied over the counter medication

Age: 33
Female
Medications: None