Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain a swollen gland under the tongue can be a swollen Submental
salivary gland which can occur either due to obstruction in the duct of the gland or it can also be due to infection in the salivary gland which leads to pain and swelling..
The white discharge that you are experiencing can be pus which can be as a result of infection..
The piece of flesh attached to the underside of tongue can be
Plica Fimbriata which is a fold of mucosa and if it has got swollen that can be a cause of prominent appearrence and it is not a pathology..
The swollen glands in neck can be inflamed tonsils as a result of bacterial or Viral Infection..
You should consult an Oral Physician and get evaluated and in case of infection on the salivary gland broad spectrum antibiotics like
Augmentin can provide relief..
For obstruction in gland sucking sour candies and sugar free gums can increase saliva flow and thereby the obstructing stones can get flushed out..
For
throat infection doing warm saline gargles, taking antibiotics and throat lozenges can relieve..
But a clinical evaluation is must to confirm the diagnosis and get proper treatment..
Hope this information helps..
Thanks and regards..
Dr.Honey Nandwani Arora..