my baby is 16 week and some days, she just had a boil that is hard below the skin and inflamed outwards. It actually looked like a bite, it was after pus came out later on that I realised it was boil. Immediately it burst, I cleaned the surface with diluted disinfectant and applied antibacterial cream on it. Is teething the cause of such boil? And is it right to have treated it the way I did? Does she need antibiotics?