Suggest Treatment For Persistent Cough And Inflammation From Allergies

HI, DOCTOR MY QUESTION IS WHAT IS A GOOD OVER THE COUNTER MEDICANE I CAN TAKE FOR INFLMATION FROM ALLERGIES N C.O.P.D. I DONT CARE 4 MUSINEX N I HAVE TRYED N I DO TAKE NOW CLARITIN AS WELL AS ZOLOFT , TRAZADONE N NEUTROTINS. I HAVE A CONSTANT ALMOST COUGH NOW N YES I HAVE SMOKED 4 ABOUT 35 YRS. BUT UNTILL I CAN COMPLETLY STOP SMOKING CAN U RECOMMEND A GOOD MEDICANE FOR INFLAMATION PLEASE ??