Hi welcome to Health care magic forum. The symptoms you are stating suggests that it might be due to secondary bacterial infectin of the biter over the tongue and cheeks.
infection needs some time to appear after exposure. I advise you to consult a physician for diagnosis and treat ment.
Besides i advise you to follow some diet recomendations as avoid taking pulses potatos and fish to prevent pus formation. Take more of green leafy vegetables egg milk fruits
and juices to build resistance and blood to fight infection. Wishing for a quick recovery and thanks for calling.