Gall Stones 13mm

Hi ,
This is prasanna.my husband has been detected with 1.6 cm stone in the gall bladder and has been advised to remove the bladder...some how i am not ok with the fact of removing the bladder...
So i have searched in the net and found the natural process what u have suggested in one thread

Below is the process:
1. For the first five days, take four glasses of apple juice every day. Or eat four or five apples, whichever you prefer. Apple juice softens the gallstones. During the five days, eat normally.
2. On the sixth day, take no dinner.
3. At 6 PM, take a teaspoon of Epsom salt (magnesium sulphate) with a glass of warm water.
4. At 8 PM, repeat the same. Magnesium sulphate opens the gallbladder ducts.
5. At 10 PM, take half cup olive oil (or sesame oil) with half cup fresh lemon juice. Mix it well and drink it. The oil lubricates the stones to ease their passage.

After this process we got a abdomen scan ,but it is still there.Now the size is reduced to 1.3 cm from 1.6 cm

i am not able to accept the fact of removing the bladder.

Could you please please suggest any solution?