Ok, now about medicines.
You obviously can't predict what will happen or what you will need, but there are a few standard items that you should keep in the house. Don't use or buy any other products without a doctor's advice.
1. Calpol/Panado syrup (your choice)
Buy plenty of 3ml syringes from Dischem. Used for pain and fever (babies under 6 months can only use paracetamol, if you want to use another product make sure it contains paracetamol and not ibuprofen). BY THE WAY: Do not give your baby Calpol/Panado before a vaccination (like some people suggest), it can effect the way the vaccine is absorbed by the body. Only use afterwards, if baby has pain or fever.
2. Saline nose drops
For nasal congestion. Don't use any other decongestant
3. Gripe water
Useful for cramping, especially in newborns. Telament is a good brand, it has a yellow box. Woodwards is also available but has a high alcohol content. NOTE: with any medicine you buy, always check the alcohol content and buy and alternative product if it's too high. No wonder our moms and grandmothers swore by Woodwards, they drugged us to death with that stuff!
4. Telament colic drops
For more severe cramping when gripe water doesn't help. One or two drops directly in baby's mouth.
5. Bennetts Colic Mixture or Buscopan syrup (buy only if needed)
For severe cramping, used only if nr 3 and 4 doesn't help. You will need a syringe. Squirt a tiny drop in baby's mouth, follow the dosage on the box very carefully and don't try and squirt the whole 2ml in baby's mouth in one go. Tiny little drops, they choke easily! And don't add to a bottle (if you're bottle feeding), must go in mouth, as far back into the throat as possible. These 2 syrups are the same, you need to go to the pharmacy (but don't need a script). I used Bennetts, because the Buscopan tastes absolutely dreadful!
6. Lennon's glycerine suppository
Not for a newborn baby. But it's useful if your older baby (after 12 weeks or so) is severely constipated. It's quite a large suppository, so cut it in half an only insert the front end. Useful to keep some johnson's lubricant jelly in the house for this reason.
7. Reuterina drops and probiflora
This is not necessary unless your pediatrician recommends it. Don't buy until you're told to.
Then, if your baby runs into a specific problem, high fever, diarrhea, nappy rash, I suppose best is to post and ask for help then. We can't all buy the whole Dischem before baby is actually sick.