<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have developed a red, itchy, rash along my jawline just below my cheek. It was almost in a straight line parallel to my jaw bone when I first noticed it this morning although it wasn t itchy. When I got home from school a little had disappeared so it was more blotchy and patchy yet it had begun to itch. I haven t used any new products and have not eaten or inhaled anything I know i am allergic to.  <response>: Hello, Thanks for writing to us. Atopic dermatitis is an allergic manifestation which gets precipitated by warm climate and sweating. You should consult with internal medicine specialist dermatologist and should go for thorough check up. Treatment depends on clinical examination. You should apply permethrin lotion along with calamine on affected site. You can use steroid ointments. Long-term management may include treatment with an allergist to control internal allergies and a dermatologist to monitor the skin-care component. I do hope that you have found something helpful, and I will be glad to answer any further query. 