Hello! Thank you for writing us here. Well, the recovery depends on the extent and severity if the wound made after excision. Normally if its too big, it would likely take minimum one month or one and a half month for its healing.
And to your second question, oxum solution is a supplement for low sodium is body. It can also be replaced by simple iodised salt which everyone have in their homes. But be careful with it. Just add an extra pinch to the food which your father have for low sodium in body. But remember don't use excess of salt or take oxum solution with lots of salt in diet.
Regards,
Dr Gunjan