any abnormal odour additional discharge etc is normally infection or something similar.
best thing to do is see a dr.
whilst your there they can assess both symptoms they may well be related.
Hello,
This looks like a fungal belly button infection and does not seem to be caused by Mirena. If there is any foul smelling discharge or itching then fungal infections has to be ruled out. I would suggest a dermatologist’s evaluation as treatment is diagnosis specific.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your dermatologist. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.