Your symptoms suggest a possible sinus infection or a dental issue, which are very common and treatable. To relieve the headache and tooth pain, you can take generic ibuprofen or acetaminophen. For the cold symptoms and sinus pressure, an oral decongestant like pseudoephedrine or a saline nasal spray can help clear your nasal passages. Please follow the package dosing instructions carefully. While these over-the-counter options will help manage your discomfort, it is highly recommended to visit a dentist to check the tooth, and a doctor if your symptoms persist or worsen. Rest well and stay hydrated!