Ur description of the afftected are is not complete. U must mention proper symptoms of ur brother to help us proper diagnosis and giving medicine.
Size of the swelling, duration of it,pain is there or it is painless,of pain persist then what conditions increase or decrease the pain,is there any other infection there or not.
Some time swelling occur due infection of throat, tonsils, ear,mouth,gum etc.These infections spread and causes swelling of the total are.
Homoeopathy has a good results in such conditions. Some physical examination needed but if u describe symptoms properly and send images then it can be done..
1.Merc sol- 200 2 drops twice daily for 3 days.
2.Mag phos 200x- 4tab thrice daily for 7 days.
Feel free to contact me if needed.
Avoid too much cold or too mich heat both internally and externally.