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Who do I see for my rash?

I am a 20 year old college student who recently noticed a rash on his neck. It's red and itchy with a ring like pattern. I wear collared shirts which may have rubbed against my neck causing the problem.However, the ring patter also makes me suspicious that it may be a fungal infection. Should I see my doctor for this or should I just go to the pharmacist for some lotrimin or cortisone OTC cream? Or do I need to go full prescription Lotrisone?
You should see your primary care doctor for further evaluation of your rash. Based on your description, the rash may be a type of "contact dermatitis" caused by contact with some form of irritant to the skin, such as the collars of your shirts or a necklace. Another possibility, as you mentioned, is a fungal infection. Superficial fungal infections of the skin often take the form of a ring (hence the name ringworm) and are often red, scaly, flaking and itchy. Since it isn't clear which of these processes is affecting you (or if you are experiencing a rash from a different cause altogether), it would be advisable to see your doctor. Applying over-the-counter corticosteroid creams to a fungal infection may actual make the infection worse or alter its appearance, making it difficult to make an accurate diagnosis at a later time. Your doctor can either make the diagnosis based on exam or may choose to look at cells from the rash under the microscope, which can often identify fungal organisms. In the case that a fungal infection is diagnosed, treatment with topical antifungal medication should resolve the problem. Oral medications can be given in the event that topical therapy fails.
This answer is for general informational purposes only and is not a substitute for professional medical advice.
If you think you may have a medical emergency, call your doctor or (in the United States) 911 immediately. Always seek the advice of your doctor before starting or changing treatment. Medical professionals who provide responses to health-related questions are intended third party beneficiaries with certain rights under Zocdoc’s Terms of Service.

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