Even the naevus on her retina is not going to kill her immediately, and it's extremely unlikely that it's actually a matter of concern anyway. Plenty of people are walking around with benign choroidal naevi without being aware.
Uveal (eye) melanoma, while the most common intraocular malignancy in adults, is exceedingly rare, with <5 cases per million people diagnosed each year. Even if she does happen to have a choroidal melanoma, which I find highly doubtful, she's not going to die before she can apply and be approved for emergency Medicaid coverage. Since she's crybegging for money from total strangers online, I assume that she qualifies.
EpiPens are expensive. This has been a complaint among people with severe allergies since time immemorial. It sucks, it's unfair, and I, too, would rather spend my money on piles of gack or Hemingway first editions. The manufacturer provides coupons and an income-based assistance program for patients who are indigent, uninsured, or otherwise not able to afford the cost of the prescription. There are also more affordable generic epinephrine autoinjectors available now. This was not true even a few short years ago: until Teva Pharmaceuticals received FDA
approval for a generic epinephrine autoinjector in late 2018, Americans with life-threatening allergies either shelled out for the name-brand EpiPen or just hoped they could make it to the emergency room before dying of anaphylaxis. I sympathize with anyone who struggles to pay for an epinephrine autoinjector, because it's not something that it's safe to try to go without.
Also, pro-tip for my allergy friends: it's almost certainly safe to use an expired epinephrine autoinjector, as long as the solution inside is colorless, clear, and without visible particulates. Studies have found that epinephrine autoinjectors retain sufficient potency to remain effective for at least 50 months past their expiration date. If all you have is an expired EpiPen, use it and seek immediate medical attention. That said, considering her allergy is to
Hymenoptera venom, it should be possible for her to simply avoid the offending insects until she's able to acquire an epinephrine autoinjector, particularly since the weather is growing cooler in the United States and it's not like these people ever go outside.