Hi! It is good that you are interested in helping the lady. However, the symptoms you have posted for the lady are very much confusing. The site of surgery for appendix
and the breast nipple are far away anatomically and I can not think of any relationship between the two.
In my view, the pus discharge from the breast nipple is a different entity altogether and it could be due to any kind of infection either acute or chronic. You have not mentioned whether she is married or not and if married if she has recently given birth to any baby who is lactating. If not, then it could be a chronic abscess
being one of the common infection specially in low socio economic status even though few other causes could be there.
I feel that she needs a screening mammogram
followed by a FNAC/excisional biopsy of the pus discharging area and for this she has to be seen by a general surgeon
. Hope this information will be of help to you and the lady.