Hi and thanks for the query, The key in the management of skin diseases is making an appropriate diagnosis. A rash could be of viral, bacterial or fungal origin. Skin irritations, allergies and systemic or autoimmune conditions could present as rashes. A proper past medical history and clinical evaluation with laboratory tests if need be, to make a proper diagnosis, especially when they fail to respond to common therapies. I strongly suggest you consult your family care physician, who might consider meeting a dermatologist or not, depending on the case. Thanks and kind regards, Bain LE, MD.