a year ago i got mono and i had strange lumps in the back of my throat,  it always looks like snot is running down the back of my throat and sometimes its red along with the lumps (some are small some ar big). They started to go away then i got sick a flu bug and they came back. I have not been able to get eid of them since. It does not hurt to breath or swallow. Does anyone know what they can be from and how to heal them? I already went to my doctor and he didnt do anything or know anything. Thanks in advance