Travelling to Spain soon and my son has a melatonin prescription. I also tend to take a pack of paracetamol on holiday with me. I've used Eurostar the past few years where customs seems simpler (or maybe I've just been oblivious).
Do I need to go through the "something to declare" line with my son's melatonin? And is that going in to Spain and when returning? Ds is autistic and I'm trying to make this all go smoothly as poss as he struggles with travelling.
Also, if I requested assistance to help avoid the crowds at security for him, can my whole family also go? Boarding passes etc are on my phone so it would make sense not to split up but there's 5 of us in total...