<s>[INST] Lips chapped on the inside as well as outside. Upper lip chapped and white inside. Had/have thrush and sore dry mouth every morning. Have scaly flaking rash on back of neck behind ear that might be impetigo or a normal skin condition like psoriasis. The lip thing is new, is it just another symptom of something, and my lips have never felt dry and chapped on the inside, mostly my lower lip chaps on outside. [/INST] Hi, you are having colitis and xerostomia. You are having rash on nape of neck and post auricular area. Which may be either allergic or irritant dermatitis, seborrhec dermatitis, localized psoriasis or Tina infection. Difficult to say. Apply moisturizing cream on lip twice a day. Apply steroid with antifungal cream on rash twice a day. Take antihistamines if you get itching. Avoid soap bath. Do alone shampoo to cleanse the scalp. Avoid sun exposure. You consult Chat Doctor. . Ok </s>