How To Get Rid Of Dandruff?

I HAVE GOT BRONCHITIS IN CHILDHOOD AFTER GETTING PNEMUNIA,NOW I HAVE ALSO GOT PROBLEM OF SINUS, THERE IS LOT OF DANDRUFF IN HAIR ALSO, RIGHT NOW I AM HAVING COUGH, NOOSE BLOCKAGE INFECTON OF UPPER RESPIRATORT TRAC HAVE TAKEN MEDICE EROSTIN DC, MACHPHOD 200, AZTHROMYCIN BUT NO RLEIF KINDLY ADVICE MEDICINE FOR IMMEDIATE RELIEF & PREVENTIVE MEDICINE BECAUSE I HAVE TO GET HOTPITALISED EVERY 6 MTHS, MY JOB IS OF BANKING WHICH CARRY BOTH PHYSICAL & MENTAL STRESS