There are many extracranial lesions that cause headaches. Inflammatory diseases, such as colds, flu, tonsillitis, and pneumonia, cause inflammatory headaches. Systemic systemic diseases, such as hypertension and heart failure, can also cause headaches. Carbon monoxide poisoning and alcohol poisoning can also cause headache symptoms. In addition, cervical spondylosis, cervical disc herniation, and muscle tension headache caused by excessive contraction of the neck muscles are also seen. There is also odontogenic headache, which is seen in dental caries. Otogenic pain, where otitis media triggers pain in the ear and head. Chronic sinusitis can cause pain in the forehead, usually in the late afternoon. Neuropathic pain is seen in trigeminal neuralgia, occipital neuralgia, and ophthalmogenic headache can be a headache caused by glaucoma.