Please Tell Me Some Home Remedies For Fungus On Scalp

Hi, My little brother had a black bump on his scalp a few days ago, he is 8 years old and he would continuously scratch it until one day it came off. And all of a sudden all the hair in that small circle where the bump used to be fell off. Now he is bald and the area is swolen red. It is a big red circle and it looks like there is quite a bit of pus in there, I am afraid to pop it because it is his scalp and a sensitive area. Please tell me some home remedies i could use to help it heal. Hi, My little brother had a black bump on his scalp a few days ago, he is 8 years old and he would continuously scratch it until one day it came off. And all of a sudden all the hair in that small circle where the bump used to be fell off. Now he is bald and the area is swolen red. It is a big red circle and it looks like there is quite a bit of pus in there, I am afraid to pop it because it is his scalp and a sensitive area. Please tell me some home remedies i could use to help it heal.