Hi My Name Is Audrey, My Question Is I Had

Hi my name is Audrey, my question is I had this knot to come on my chin area and over a year a ago I went to surgeon who cut me under the chin to remove it he told me that is was a hair causing but the knot never really left and now it seems to be getting A larger. I have had surgery on my chest when I was twelve yrs old because of a cyst the doctor told my mom. Then I had to have surgery under my arms for being allergic to deodorants. Can you give me some answers.