My three year old son has a little pin size hole in between his pinky toe and the fourth one. There was a little piece of dead skin and i moved it thinking it was dirt and i noticed the hole and its a little deep and It is kinda hard around the hole .. we noticed our dog had a tick and I m getting really worried because they are saying it can be a staph infection or it can bea fungus. .
Hi... I feel that it could be discharging sinus which might have got secondarily infected. But, skin conditions are best diagnosed only after seeing directly. I suggest you to upload photographs of the same on this website, so that I can guide you scientifically. Hope my answer was helpful for you.  I am happy to help any time. Further clarifications and consultations on Chat Doctor are welcome. If you do not have any clarifications, you can close the discussion and rate the answer. Wish your kid good health.