Day- I traveled quite a few times during my jab periods. U shld handcarry your lucrin/puregon. But must keep icepacks when u carry them. Also, since hand carry, u need to get doc to give u a letter and certify what the liquids are. When on board, u can ask flight attendants to help u store them. Typically SQ attendants may ask to see what they are. So, show them letter or ensure that it's easy for them to check. Are your flights long or short? I actually bought this cooler bag that can store vials of lucrin or puregon. Cos when u touch down and travel to hotel, u need to ensure that it's refrigerated thru out. It's kinda troublesome. Cos when I check in, u must rembr to store them in fridge. When check out, also have tendency to forget, so u must remember to tale it along with u.