please help

[John Brandt]

Heavy and chronic smoking leads to decreased immune system function, 
as well as many other things.  Your father's ulcers may not have 
originally been caused by his smoking, but the reoccurance of his 
ulcers, and their slow healing, are due to his declined immune 
responses.

I have some more advice on helping your father's healing process from 
these ulcers. E-mail me if you want to discuss more: 
gymnastjohn at msn.com

john