@DailyEnergyCrisis and with reference to @togoornottogoto.
DailyEnergyCrisis, I am also finding it difficult to believe you are a pharmacist as you have immediately decided that the static photo the OP took of her wound - whatever was the initial cause of it, but in this case a hungry mosquito bite - shows that her bite is fine, not infected, and that she shouldn't 'bother' anyone else in the medical feed, with her very understandable concern. Forgetting for a moment that the OP said herself that that photo was taken the morning after (?) - presumably she means after the bite first happened/annoyed/worried her? I am not sure of the exact timings of the OP's wound, and when certain things occurred, but to be honest the timeline is not of much use to us anyway. What you, and the other PP's need/ed to concentrate on, and what that photo could not give you, but her excellent description of what her wound looked like at first, and then how it looked subsequently, was much more helpful than the photo was, at giving us up-to-date information. But as you fixated on the photo, and how it looked much milder than you expected by the OP's descriptions of her symptoms, you don't seem to have taken into account
all sorts of things that could have affected the photo that the OP showed to us. These things include, but are not an exhaustive list of explanations for the photo not being of more use to someone who puts a lot of faith into a photographed image of something that was almost constantly changing anyway. Some of the things that could have affected the quality of the photo are:
The lighting conditions where the picture was taken;
The quality of her (phone?) camera's specs;
The fact that the OP is probably not qualified in taking photos for the use of medical personnel, so she would have almost certainly not realised that several shots taken close together, and from different distances and angles, would have probably been more helpful.
Also @togoornottogoto was probably too worried at that time by her changing wound to give much thought to the quality of the photo. I'm not sure that if I had been suffering the same dilema as the OP, that I would have even thought to take a photo of my wound at all!
Whatever that photo appeared to show, I think that in this particular case at least, her description of the wound when it was possibly at it's worst appearance to her - tells me, and if you are really a British medically qualified pharmist, it should tell you the same thing - that she should have got it checked out immediately.
Unfortunately, it is quite possible that because of all the apparently ignorant, but mainly well intentioned Mumsnetters on this particular thread, telling the OP it was nothing serious, including those who told her to just 'treat' it with antihistamines, and that allergies don't react to antibiotics (no they don't usually, unless there is an unknown infection present at the same time, but it really wasn't an important issue to raise at that time, and probably just muddied the waters) that those assurances could have convinced the OP, a lay-woman in terms of medical knowledge - who would probably have no idea about the extent of what could have been happening right then, within her wound, within her bloodstream - to believe that she was100% okay, and that she would be wasting the time and resources of any medic she went to see. Luckily, togoornottogoto was too intelligent to just accept those reassurances, as that could have led to a very different outcome...
[as an aside OP, I would have definitely taken myself to the nearest Italian A&E when the wound started to produce the exudate that it did, as you may have got very close to a Sepsis diagnosis, and to be honest I am not sure that you are completely out of the woods just yet, where that worry is concerned 🫤]
As I said in a previous post on this thread, I hope you are completely well now. I also think that yes, it would be very sensible of you to see your own GP when back home, just to check that there isn't anything else going on, or that you should do, before next going to a place you are aware it may be overrun with the little nuisances! xx