Is this ich?

+1 on the coral sting.
If you think that is bad, you should have seen my naso tang the other day! he sleeps between my two scolymias... you can probably imagine what his stings often look like lol

 

Okay. This is good news that its not ich. But I hope he doesn't get a bacterial infection. He seems to be okay because yesterday we noticed that he has found and "re-paired" with the pistol shrimp I didn't personally see it. My boyfriend Brian, who shares the tank with me, told me that they did. I forgot to ask him how the white spot looked. I will ask him when he wakes up. Thanks everyone for your input! I will let you know if it heals (or gets worse).