Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain the most common cause of painful bump over the tongue and small red painful bumps under the tongue are most commonly Apthous Ulcers or Canker Sores and can be due to a few common conditions like
Nutritional deficiency of Iron,
Vitamin B12 and
folic acid, stress, taking more of Citrus and sour foods,
allergic reaction to any medication or food etc..
Nothing to worry, you can take a
Multivitamin tablet daily for 15 days.
Apply a numbing gel containing Lignocaine over the ulcers for pain relief..
Avoid spicy as well as sour foods.
You can take Anti-inflammatory painkiller like Ibuprofen.
Soda-bicarb gargles can help..
The ulcers will resolve in a week or even less but in case if there seems no improvement then you can consult an Oral Physician and get evaluated..
Hope this information helps..
Thanks and regards..
Dr.Honey Nandwani Arora.