I hope your little one feels better and you guys still get to experience some magic before your trip is over!
My boys are 3 and 5, and have both been sick often. We have been to the ER once and Urgent Care a handful of times. We have also seen >7 Ped practices. This is mostly due to either traveling or being a military family. Also, I have family/friends who are Peds/Internists, who have informally checked out the kids.
I agree with Happyinwonerland but will provide my experience as a mom in case you are just surveying what other parents have done. From all of the above, I've generally been told that absent a diagnosis, low grade fever may not require medication. It's just the body's way of fighting off something (if 3 or less days). However, you may give Tylenol to bring it down or for comfort. I typically only medicate my boys if it goes about 101 or 100.4, and I do it consistently (i.e. every 4 hrs) until the fever breaks. Usually, it doesn't come back but occasionally it has. I don't even see a doctor until it's consistent for more than a couple days or spikes to 104+ or the fever repeatedly comes back after breaking. That's only after 5 years of seeing a range of illnesses for cold, flu, rsv, ear infections, and upper respiratory infections and related issuesin my boys. However, it might be prudent to go to Urgent Care if your daughter does not frequently get fever and/or you're unsure of what to do. I think it's always better to be safe and get it checked out, even if the outcome is simply to rest. At least you avoided assuming any risk had there been a real issue.
For me, I'm the type of person who likes to know I did everything I could so I don't feel guilty later in case anything went awry. For some parents, they are more risk based decision makers or must consider other factors like out of pocket costs. Hope that helps.