Hemorrhoid? Sorry if TMI

I am 16 years old and got all four of m wisdom teeth removed a week and a half ago. I've been taking ibuprofen and I think a medicine called Hydrocodone. The Hydrocodone has made me extremely nauseous, and constipated. And has caused excruciating cramps, it was very hard to use the restroom and caused a lot of straining. I noticed yesterday that when I could finally use the restroom, there was something in my stool that looked like blood. But it might have been something I ate. I noticed slight pain around my anus, and I felt a bump there. My reaction was to see what it was. So when I looked, it was a bump around my anus about the size of half a dime. It doesn't hurt very much. But from my research on the internet, it looks like it could be an external hemorrhoid from all of the straining and constipation. I am only 16. And my parents don't help me out with personal things. Will this go away on its own? Are there any home remedies? PLEASE help me!