Cough With Nose Constipation And Throat Hurts

Patient: My son has many times cough with nose constipation,and throat hurts with flame., and the medication is not working, its had been repeating many times,He is takingmucosolvan for cough, degraler for alergy and cipran asantibiotics. I don’t know what else can I do to stop it.please can you help me?