If your partner has been experiencing coughing, vomiting, fever, and a stuffy or runny nose, it may be helpful to try nasal hygiene using saline solution, drink plenty of fluids, consider taking Tylenol for fever, and perhaps get tested for COVID-19 given the symptoms. If the fever persists for more than 72 hours or the symptoms last for over a week without improvement, it would be advisable to seek medical advice. Wishing them a speedy recovery!