She can deny all she wants but she's covered in bedbugs bites. Round and with a small red dot in the middle, puffy on the outside.
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In my non-professional, very autistic opinion, they're either bed bug bites or flea bites that have been irritated in some way. This COULD be from picking at her skin, as it will alter the shape and size of the bedbug bite.
I've attached a photo below of both, side by side, for your viewing pleasure. As you can see, they both have very similar presentations on the skin. Flea bites are often a little bit smaller, though, which is why I'm leaning towards bedbugs. Furthermore, darkening of the skin (hyperpigmentation) can be a symptom of bedbug scars if they are continually picked at/irritated. It will cause the site to become inflamed, red, and heal poorly. Sometimes, if you have a slight allergy to the anaesthetic type saliva in the bite, or the anti-coagulant properties of it, you can also present with boils or blisters on the bite site. It also means you can't FEEL the bite until hours later when the bug is already gone. This almost always causes significant scarring in patients.
As for flea bites, they are small, red, itchy bumps. They're also usually in clusters or a line, which is why I did lean towards this option first as a lot of these scars/bumps/sores she has are in small clusters. But this can happen with bedbug bites, too. The halo (red irritation area) around the bump can get bigger if the bite is messed with and this can cause blistering and scarring. In my profession, I've dealt with both of these parasites, and I personally have had no scars from fleas, but I know colleagues who have.
Another option I haven't heard people mention is ticks. Ticks aren't always found outside, and can be tread in on shoes etc (mama-lynn). The bite pattern IS similar to a bedbug, and they almost always scar. I will say though, not as likely from the sheer amount of these scars that she had, but just another one to add to the possibilities.
How do you even get bedbugs as a sedentary fat fuck, who is bringing them in? Must be the revolving door of doordashers.
Here is where I will now give my professional opinion. More people have bedbugs than you think. Most of the time, I see it with used furniture. This can be through purchasing it yourself and not cleaning it correctly when it comes into your home, or using someone else's used furniture (Grandma-Lynn) and bringing them home that way. There are so many ways to have bedbugs, but I think the most probable for her is that she's not been able to get rid of them since the infestation she had in her home before she lived with Becky. They can lie dormant for up to a year; like I said, they can lay a minimum of 600 eggs per year. They're drawn to hosts, not necessarily dirt (but it does help). This means if they find a host they will attach themselves on your clothes, luggage, or any personal belongings. The issue here is that Amber doesn't shower or wash her clothes/belongings often enough to mitigate these stragglers. The average person showers either in the morning or evening, which removes any eggs from your skin if you've been sitting on infested furniture unknowingly. Most people wash their laundry at minimum once per week, which mitigates the chance of them moving from your laundry and instead are being killed in high temp waters.
The reason she's got them is because she's not cleaning herself and her hoard of shit enough. If she vacuumed every once in a while, did laundry and showered like most of the general public, then she wouldn't have had them in the first place.
My theory is that they were dormant for a period of time (unsure how long, but it realistically couldn't have been longer than a year), and when they come back, they boom and this is why she has a sudden large-scale infestation.
Thank you for listening to my rant about bugs, puzzles welcome as always.
