Consumer Education - Proper Diagnosis of Dandruff, Seborrheic Dermatitis and Scalp PsoriasisDandruff, Seborrheic Dermatitis, Scalp Psoriasis, Pityrosporum Ovale, propylene glycol, Neutrogen T-Gel, Nizoral Shampoo, Nizoral Conditioning Shampoo, Dermovate, DermaSmooth, Fluocinolone Acetonide, Clobetasol 17-propionate Dandruff, Seborrheic Dermatitis, and Psoriasis are three of the most commonly reported scalp inflammatory conditions. These three conditions are characterized by very similar symptoms and distinguishing one from the other can sometimes be difficult. However, as with any other hair conditions, accurate diagnosis is critical to a successful treatment and speedy recovery. Please note that scalp inflammation can happen even if you are not using Rogaine or topical minoxidil. In fact, there is no scientific study which shows that topical minoxidil is the cause of scalp inflammation. Some people are simply more prone to certain scalp conditions than others. Besides topical minoxidil, Retin-A is also known to be associated with scalp inflammation. Specifically, scalp treated with Retin-A will become vulnerable to sunlight and may develop an inflammatory reactions due to sun's exposure. In addition, some suggested that inflammation may be related to bacterial activity on the scalp. Researchers Young et al. proposed that inflammation is a direct cause of bacteria that inhibits in the hair follicles.