My experience with chemo is mostly from a palliative sense.
It is important to rememeber that there are different types of chemo, and applicaitons, it isn't just a one size fits all scenario.
But this is my experience.

How do you feel after a Chemo session, that day and the next couple of days, ie tired, sick etc.?
It varies from person to person and from session to session.
Generally though the affects can take as long as 7 days to kick in - so they may be fine for 5 days after then become violently ill, or develop other side effects like lethargy, ulcers, loss of taste and smell.

What does it involve, it is like an IV (I apologise for my complete ignorance here )?

A combination of pills and IV depending on the form of chemo. There is a form that is simply pills, others that involve being hooked up to the IV for some hours. It will depend on her type of cancer and the desired use and outcome for having the chemo. Also on her previous responses to the drugs.

Are there certain things you should avoid, I assume that being exposed to any kind of illness is a no no?
Any sort of illnesses are a MAJOR hazard. However, having said that, the imuno-suppressant affects of the chemo also vary from patient to patient and depend on the type of chemo administered.

Things like FLOWERS and PLANTS are also a HUGE no no in a imuno-suppressed state as they carry bugs and insects and other irritants which can be just as dangerous (hence why no flowers in the cancer ward )

Even a slight runny nose in a healthy person can cause a life threatening infection in an imuno-suppressed patient, so please take this very seriously.
(Perhaps you nd hubby can up your Vit C from now until you are there, get plenty of sleep and wash more than usual and make sure you don't pick anything up. It is heart breaking to travel all that way and not be able to see the person due to a snotty nose)

What about foods, drinks, alcohol etc ? (I was going to take up some lovely SA wines and Heighs chocolates
I would advise you to be prepared for the very real possibility that she will not be able to taste or eat or drink.
The side effects of the drugs she will be on are wide and varying, however one of the most common is the occurrence of ulcers in the mouth and on the tongue which not only effect taste but also the physical ability to eat - they are exceptionally painful and very difficult to manage.

Also, the nausea is not just a side effect of chemo but of the cancer itself and the other drugs patients are usually on. I would check with someone how she copes before rocking up with a bottle of wine and chocolates that simply taunt her iykwim.

Other side effects worth noting are dry thin skin, that becomes VERY sensitive and painful, constipation, lethargy and inability to concentrate, muscle aches and pains, vomiting nausea and ulcers, irritability and mood swings, fluid retention...
All of these things are usually treated with other drugs hich can have their own side effects also.

As I said though, every patients experience is different - my mother didn't suffer nausea and vomitting until her second treatment, and didn't set in until days after...

Some lovely things you can do for her are reading to her while she is in the chemo room (a very depressing place to be- prepare yourself for this if you are going to be there with her during treatment), moisturiser instead of chocolates - rubbing it in to their skin can help with the dry stretched feeling and also helps circulation while they are sitting so long.


Hope that helps....if you have any questions at all before or during or after you see her, feel free to PM me, it is a very confronting thing to witness, no matter the outcome of the treatment.
All the best to your godmother, I hope her treatment is successful