Lump In Soft Palate, Tongue Has White Coating With Small Bumps, Sore Throat, White Colored Mucus. Any Diagnosis ?

i am having a lump in my soft palate from last 1 year.. have been to an oral surgen three times but he couldnt figure out what it is..!! my tongue have a white coating everytime with small bumps accompanied by a sore throat.. from last month i have seen some light red marks on my palate and u feel my palate to be cold if i touch it with my tongue.. i can also see white coloured puss like mucus on my throat everytime..!! 4 month bck i was diagnosed by hiatus hernia.. i had a junction at 36 cm as per the report says.. i feel nausea n lot of pain in neck n shoulders.. the lump on my palate has a shape ov a rice.. seem like its stucked in my palate.. i often feel swellin around it.. which comes n go of itz own.. can some one guide me plz... um too much worried.. can concentrate on my work..!! thankz