Hi Doctor , 20 days before i had temperature , cough and it takes 15 to 20 days , and here local doctor gave me anti bio tics i eat them and now i well , no temperature but still have cough , it seems like some times the dry one and some times not, with all this my complex i mean color of my face and body becomes pale and brown , all people says to me what happen to your face , today i look in mirror i saw black, grey spot on my tongue also.What you suggest and recommend.