What could be causing alternating unilateral headaches accompanied by ipsilateral eye watering, rhinorrhea, sneezing, a nasal burning sensation, and a fever in an individual with a history of sinusitis?
Given your history, these symptoms suggest a possible sinus infection flare-up, as the fever, runny nose, and sneezing point toward an active inflammatory or infectious process. Sometimes, sinus inflammation can stimulate local nerves, causing one-sided headaches, eye watering, and a burning nasal sensation. However, because these symptoms can also mimic certain nerve-related headache disorders, it is best to have a doctor examine you. They can safely determine if you might benefit from generic treatments like saline nasal rinses, antihistamines, or antibiotics.