Hi thanks for your question
Your mother has browinish discharge through ear and has perforated drum
Your mother has developed infection of middle ear called as otitis
Otits media can perforate the ear drum or can occur through the perforated drum
. Your mother needs antibiotic,decongestant plus some multivitamin
perforated drum can heal but you have to take certain precautions
No 1 keep her ear completly dry.
No 2 Take due care that she should not develop rhinits(common cold
) that will hamper healing of perforation.
Hope information I provided will be of use to you