WIDAL test is not diagnostic of typhoid fever, unless it's Possitve in high titer or rising titer, it may indicate past infection, Blood culture with BachTalert is ideal , however you have to get it done before starting antibiotics, However I doubt if your enteric fever diagnosed earlier was it confirmed with blood culture? It's unlikely that it responded to Ayurveda treatment without antibiotics, . If it's diagnosed based on single WIDAL test, it may b false Possitve,

You are not following treatment regimen as per dr +5day dose is not sufficient  it has to be 2weeks  +that's is reason of getting repeated widal positive