Most bites are just your skin being dramatic. A little redness, some itching, maybe a small bump—this is your immune system doing its job. It’s like a security guard yelling at a strange bug, “Hey, you’re not welcome here!” and then calming down.
If the swelling is about the size of a dime, and the itch fades after a day or two, you’re fine. Slap on some antihistamine cream, maybe an ice cube, and try not to scratch until it bleeds (easier said than done, right?).