I have a red blotch on my upper thigh unsure what it is. It's not itchy or puffy or bothers me at all just concerned
Since the photograph was not that clear, this lesion could be a number of skin conditions. The lesion could be bleeding under the skin called purpura, this could be a contact dermatitis which is an allergic type of reaction, this could just be eczema which is dry skin or this could be an irritant skin reaction. Treatment depends on the diagnosis.