It sounds very much as though you have a sinus infection and you may benefit from a prescription for antibiotics to help you to clear the infection. Additionally I would recommend non-medicated saline nasal spray (you can buy this at any pharmacy or walmart) to help break up the congestion. You will also want to increase your fluid intake (should be at at least 8-10 glasses of water daily) to help get the stubborn mucous moving. For your cough you may consider the 'honey treatment' instead of medications that can make you drowsy and feel worse... I will provide you with information on this at this link here:
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