3 unhealthy musketeers

Im in my worst health condition of all time... Mr.Cough, Mr.Flu & Sir.Sorethroat, the famous 3's seems so much closely bonded to me that they dont want to leave me away... What should i do.. ive tried almost all the remedies traditionaly and modern,  including many rounds of miserable visit to see the doctor.. yet still these 3 musketeers were strong enough to fight the natural imunity of my body... Never had this kind of suffering at any point of my life...i wonder whats going on with me.. :(