Your symptoms point to sinus congestion, which can block the connections to your ears and cause discomfort. To relieve this, you can use an oral decongestant such as pseudoephedrine or a short-term nasal spray such as oxymetazoline (limit use to 3 consecutive days to avoid rebound congestion). For the headache, over-the-counter pain relievers like ibuprofen or acetaminophen are highly effective. Additionally, using saline nasal sprays or steam inhalation can safely ease pressure and loosen mucus. Please rest and stay well-hydrated. If your symptoms do not improve after a week, worsen, or are accompanied by a high fever, please consult a doctor for an evaluation.