I am sorry to hear that you have had this problem, and am certainly concerned about it being more than a pimple as well. While these "walk in clinics" can be very helpful, it is certain that they do not replace the thoughtful advice that you can receive from your doctor
. In many cases, they are staffed by nurse practitioners or physician assistants who are quite capable, but it is common that problems may arise that are beyond their level of training. If you find that your symptoms are becoming worse or not improving quickly enough, then speaking with a doctor via a regular, scheduled, appointment is appropriate. Even the emergency department may be needed in some cases. From what you describe, it seems that you may have some sort of infection that needs appropriate treatment. If you are diabetic or have other immune system concerns, your symptoms could be especially concerning. Regardless, I would advise you to please speak with your doctor about the matter.