hi about a week ago i noticed a small bump of what i thought was an ingrown hair on the back upper part of my neck well the bump kept growing and i assumed i had staph because of the raised center and appearance and because i noticed my son had two similar spots shortly after i noticed mine. i assumed he mustve gotten it from me considering a staph infection is pretty contagious .. one on his temple and one on his head slightly diagnal to his temple. ive been putting tea tree oil and a salve cream on both of our sorefor the past 6 days, and mine has been contained and is getting better. but today day 4 of tea tree oil and salve for my 6yr old;(day 5for me) he has gotten rid of the raised center and now is a crusty blistering rash that spread down his face to his nose and his elbow and a small part of his foot, but mine has gotten better and stayed in one spot.. we are using the same methods to treat this so but since his sore does look like its not filled with pus under his skin anymore, that he may be having an allergic reaction to the salve.. so i stopped putting it on and it seems to worsen even without it.... should i rush him to the hospital or schedule an appointment with his doctor and wait a few days from now? hes not running fever and his eating habits are the same.