I have had my ears syringed a couple of times over the years due excessive wax affecting my hearing. The doctor, in my case, insisted on twice daily warm olive oil being dropped in to the ear canal for a week or so BEFORE he would do it. In my friends case I believe he was subject to a ham fisted and dangerous procedure by a, probably, incompetent doctor who did significant and permanent damage. Today he could have sued but then what price loss of hearing?