Mouth Sores

[DiddleBug]

In the past I've had 2 cases where my female corys would get a mouth sore after spawning. Is this normal? The one's sore got very deep. What's the best way to treat this? I plan on breeding my corys before too long, and I want to be prepared in case this happens again. 

 

[BiggTexx]

Do they still have the sores, or did they ever clear up?  Were they localized to the mouth area, or extending down their stomach?
 
Possibly Red Blotch Disease?

 

[DiddleBug]

Well, the one died (it got very skinny if I remember correctly), and the other slowly recovered. No, it only was in the mouth region. 

 

[BiggTexx]

It could just be an injury from the spawning (aggressive male or such) but I would keep an eye out as this should not really happen.

 

[DiddleBug]

Yeah, it hasn't happened for quite some time. I'll let you guys know if there is any future problems.  
 
Thanks for the help!