You got a lot of good advice already. I agree with what has been said I do not see any way for your friend to be able to safely pour even drops of water into Lotta's mouth without the risk of choking and/or aspiration. Choking and aspiration can happen with even a very small amount of water. Please do not risk it.
If they don't sell the products you were suggested in Finland, having them shipped may be an option. Simply contact the companies and ask if they ship to your location.
Like we have told they do not sell many of the products here you have suggested.