I'm not sure what the options are for an answer but based on what I remember from my ENTO class, it would be secondary myiasis.
Substance abuse can spread STIs because when a user shares needles with an infected person, it can spread through the blood. Any high-risk behavior like this spreads STIs.
1) Remove the chemical
2) Remove any contaminated clothes or jewelry
3) Rinse the burn immediately
4) Loosely apply a bandage or gauze
5) Take an OTC pain reliever
6) Consider a Tetanus shot
