How do you know if a bite is serious?

Related questions

1. What does a flea bite look like?
2. What are the little black gnats that bite?
3. What would cause gnats in the house?
4. How did I get gnats in my house?
5. Can mosquitoes bite through clothes?
6. What scent do gnats hate?
7. How long does it take for a yeast infection to go away on its own?
8. Can mosquitoes bite through blue jeans?
9. What do bed bugs bites look like?
10. Can gnat bites be dangerous?

Tags

1. #become
2. #closely
3. #important
4. #infected
5. #watching
6. #fever
7. #doctor
8. #stung
9. #without
10. #appears
11. #spreads
12. #redness
13. #immediately
14. #warmth
15. #streak
16. #toward