Since your symptoms just started, this is likely a common viral cold. For a runny nose, an over-the-counter antihistamine (like cetirizine or loratadine) can help dry up nasal secretions. If you also feel congested, a short-term decongestant nasal spray (like oxymetazoline, for a maximum of 3 days) or a saline nasal spray can provide relief. Ensure you get plenty of rest and drink plenty of fluids like water and warm teas to stay hydrated and soothe your throat. Avoid antibiotics, as they do not work on viruses. If your symptoms worsen, you develop a high fever, or they last more than 10 days, please visit a clinic for an evaluation. Get well soon!