It is not always necessary to visit a dermatologist about an occurrence of contact dermatitis. However, it’s important to have conditions diagnosed properly, so you can get relief. The dermatologists at MetroDerm can help you if you suffer from contact dermatitis. The symptoms of the condition occur when a rash appears after an allergen touches the skin. If the rash appears immediately, it’s easy to tell what is causing the condition. However, the rash can appear sometime after contact. When that happens, it’s difficult to tell what sparked the reaction.