My 3 months 2 weeks old son has a infected toe and it seem like ingrown nail (not sure). His toe is a bit swollen and got some pus. Anyone know how to deal with it? If i bring him to GP, is there anything the doctor can help?

Its common. Just some small cut have infection with plus inside making recovery very slow. My kid have it and the doctor will use needle n poke to remove the blood n plus that is inside. After 4 days the outer skin will come off by itself n it will be fine. The doctor will also give u some cream to apply. This case see a PD better as the cream they give is more suitable for babies.