There's a chance that a Midgardian doctor could end up helping Loki. Imagine Loki in a human hospital, trying to explain his situation to a doctor who has no idea he's a Norse god. The doctor, using modern medicine, could prescribe antibiotics and give him advice on how to recover. Also, Valkyrie could be someone who helps. She's a tough warrior and might have some knowledge of remedies. She could force Loki to rest and take care of himself, which Loki might initially resist but eventually give in to.
Thor could be the one to help. Despite their differences, Thor is his brother and would notice Loki's ailment. He might bring Loki some sort of Asgardian remedy or just stay by his side to make sure he's okay. Another possibility is Heimdall. With his all - seeing abilities, he could detect Loki's sickness and offer his assistance, perhaps guiding Loki to a place where he can be healed.
One possible plot could be Loki trying to hide his strep throat at first because he doesn't want to show weakness. He might continue with his usual mischievous deeds but keep getting tripped up by his illness. For example, he could be in the middle of a prank on Thor and suddenly start coughing, ruining the moment. His friends or foes might start to notice his uncharacteristic behavior and figure out that something is wrong with him.
Thor could be one of the first to take care of Loki. Despite their differences, Thor still cares about his brother. He would use his strength to protect Loki from any threats while Loki is sick and might even search for rare remedies.
In some fanfictions, Jane Foster could play a role. If she's around Asgard at the time, being a scientist, she might have some knowledge or technology that could be used to treat Loki's wounds. Also, Valkyrie could be a helper. She's a fierce warrior and has a sense of honor. She might see Loki's injury as a chance to prove her worth or as a debt she needs to repay if Loki had previously helped her in some way. And of course, Frigga, if she were still alive in the fanfiction, would be a great source of comfort and healing magic for Loki.
He could meet the Frost Giants. Since he has some connection to them already, they might welcome him or at least be intrigued by his presence. He could learn more about his heritage from them and maybe even form an alliance.
I once had strep throat that just wouldn't go away. I took the antibiotics as prescribed, but it seemed like the bacteria were resistant. My fever kept spiking, and I was constantly fatigued. I lost a lot of weight because I couldn't eat. It was a long and terrifying battle with strep throat, and it made me realize how serious this common illness can be. I had to go through multiple rounds of different antibiotics and deal with the side effects too.
It could be someone who is manipulating Loki to kidnap the Hulk. Maybe an even more powerful villain from the Marvel universe, like Thanos. He might be using Loki as a pawn to get the Hulk for his own evil purposes.
Loki might become more empathetic. Usually seen as a bit of a trickster, having a girlfriend could make him understand others' feelings better. For example, he'd have to consider her emotions when planning his schemes. He could also become more protective, using his powers not just for his own gain but to keep her safe.
One main character could be a young scientist. This person could be intrigued by Loki's arrival and his other - worldly powers. They might try to study him in a non - invasive way, which could lead to some interesting interactions between them. Another character could be a street - smart kid who Loki befriends. The kid shows Loki the ropes of the city and in return, Loki protects the kid from the local bullies.
My cousin had a horrible case of strep throat. His tonsils were so inflamed that they almost touched in the middle. He had a high fever for days and was delirious at times. He couldn't sleep because every time he tried to lie down, the pain in his throat got worse. It took him weeks to fully recover even after starting the antibiotics.
Loki can be a great asset in fanfiction. His character has so many layers. You can explore his redemption arc in fanfiction, or his fall from grace in new and different ways. His powers are also quite fascinating. In fanfiction, you could have him use his shape - shifting ability to infiltrate an enemy's lair or to play pranks on other characters. His presence can create drama, humor, and a sense of mystery in any fan - created story.