There is a link here to the different types of biopsy they do.

http://imaginis.com/biopsy/biopsy_types.asp

The cone biopsy that I mentioned is to diagnose if the the person has cancer of the cervix.  My friend had this procedure done some years ago.  Generally you need to rest for around six weeks after I think whilst the cervix heals.  She says everything was ok and no other treatment was needed.  My Aunt however had the same procedure and then shortly after had to have further treatment a day or so later to remove the cervix, uterus and ovaries and then have radiation therapy as they found cancer.  Usually though when they find pre cancerous cells, if the person has been having regular cervical smears, then they generally say it has been caught early because cervical cancer is a very slow developing cancer from what I have read in the past.  I do believe that diet can help a great deal with this type of thing myself.  She should make sure she reviews her diet because a diet very high in refined and processed foods and dairy can be the ideal environment for cancer to grow as the typical western diet lowers the immune system.  Tell her to look at wheat and dairy.  These foods raise the levels of bad eichanasoids in your body and it can pre dispose you to cancer.  Ask her to look at reading at "Eat Right For our Blood Type" diet too, which also goes into which blood groups are predisposed to which kind of cancer etc.  Also take a good multi vitamin and a folic acid supplement and atleast 800 iu’s vitmain E a day and 1-2 1000mg vitamin C per day. 

High levels of estrogen foster cancer or tumor growth and I’d also look at getting her estrgoen and progesterone levels checked out.  A lot of the time estrogen dominance is the cause.  Due to the increase of hormones in animal foods and chemicals used to spray plants and things a lot of these chemicals have an estrogenic effect in the body.  So a lot of women have this problem and it is now said that this is one of the reasons why the cancer rates (breast, uterine and cervical) are rising.  I take st jophns vitex once a day at night) which balances a womans hormones.  Around 3ml which has about 200mg vitex in and also st johns wort which is good for inflammatory problems.  I am taking this to control endometriosis though.  I also use a natural progesterone cream (make sure it is made by a chemist who know what they are doing) as progesterone is often deficient in women with estrogen dominance and they are more prone to bone density loss.  

A lot of Doctors prescribe progestins, but these have no end molecules and of course cannot mimic natural progesterone and as we all know natural progesterone stands in direct pathway to a lot of other hormones being made in the body.  So as a consequence because progestin (synthetic progesterone) cannot do this, but stops the need for the bodies own natural progesterone to be made, it causes various hormone deficiencies and even possibly a pure stress response I would say.  

An easy way to understand why there should be a good balance between estrogen and progesterone in your body is that estrogen hormone fosters growth of cells and progesterone fosters the death of cells and regeneration of new ones.   So of course if there is an imbalance in favor of estrogen you get over growth of cells etc.  Once you correct that in the body, often whatever problems were occuring are reversed slowly.  With the xenoestrogens (the ones from chemicals and such) they are not complete as natural estrogen in shape and although they can lock on to the sterogen receptors they cannot mimic natural estrogen exactly.  But nevertheless that’s one less receptor cell for a natural estrogen to use, and as you can imagine, too many cells taken up with these rogue xenoestrogens and you can create a low of imabalnce in the body I’d imagine.  You’ll find these in plastics used to store and wrap foods and they are leached from the plastic to the food. 

Hope that all helps.  Read as much as you can for her and you’ll be a great help to her I’d say...but I think as I said above, a lot of the time these things are just a small warning to us to take better care of ourselves by de stressing as much as possible, resting and looking at our diet.