Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain
swollen gums and ulcers in mouth seems like
Gingivostomatitis and can occur due to a number of causes like Viral herpes infection, deficiency of iron and vitamin B12, stress, allergies,hormonal imbalances etc..
The white coating over tongue seems to be due to yeast infection known as
Oral thrush.
You need to consult an Oral Physician and get evaluated and in case of viral infection
antiviral medication like oral and topical acyclovir, valacyclovir can help..
In case if it is apthous stomatits gargling with numbing mouthwash containing Lignocaine, taking
multivitamin supplements, doing warm saline gargles and avoiding spicy food can help..
For oral thrush antifungal mouthwash like Nystatin mouthwash, anti-fungal lozenges and taking plenty of probiotics like Yoghurt and garlic can help..
Hope this information helps..
Thanks and regards.
Dr. Honey Nandwani Arora.