You cannot take any liquids with you into a plane cabin and have not been able to do so, since the twin towers were destroyed, so you really are behind the times.
Nor on any European flight may you take anything of metal with you in your hand luggage, including knitting needles, nail files etc.
If you need medicines with you, you MUST have a letter in English, French or German with you signed by whichever doctor prescribed them. If you are of the age to travel with an infant in arms and the child is bottle fed, you cannot take milk or formula for the infant with you without special permission either.
Medcines etc. that you do have a covering letter for should be packed in a transparent pouch or sponge-bag, so staff easily can verify what it is.
If like my DH you had a bone pinned with surgical steel it was as well to have copies of the relevant X-rays with you on a thumb drive and a signed copied of the medical notes from the orthopaedic dept. where treatment had been carried out
Turn up early, as checking in will take longer and if you ever should need to take a wheel-chair or crutches with you then you will probably need to be at the airport two hours before the scheduled check-in-time, having advised the airline that you are a wheel-chair user or accompanying one, as you will have to go through a different entrance to the general public.