Is it an infection or Permalip reject? (Photo)

Hello I have Permalip side : 5 since 2.5 years with no problem But since 3 days a "button" (?) is appeared on the top of my mouth at the right side it is swollen and hard.. I take since 2 days antibiotics during one week...I have a rendez vous with doctor in a week I'm very worried..it seems like the Permalip has slidden To the top..How is it possible after 2.5 years. Is it an infection or Permalip reject ? I don't want to take them off... what s happened ? .thank you so