Hello. To help relieve your symptoms, you can use common, over-the-counter generic medications. For chest congestion and cough, an expectorant like guaifenesin will help thin and loosen mucus. For sneezing, a daily antihistamine such as cetirizine or loratadine can provide relief. For your mild headache, paracetamol or ibuprofen is effective. Additionally, make sure to drink plenty of warm fluids and get adequate rest to support your recovery. If your symptoms worsen, persist for more than a week, or if you develop a high fever or shortness of breath, please consult a doctor for a proper evaluation.