Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain open cuts on the sides of lips known as Angular Chelitis and soreness inside mouth seems to be due deficiency of Iron and
vitamin B12 leading to the following symptoms..
The white film can be due to secondary fugal infection..
Nothing to worry, you can start taking
multivitamin supplements daily and take a diet rich in iron and
vitamins..
You can also gargle with a numbing mouthwash containing Lignocaine to relieve soreness and burning of tongue..
You can also take
Ibuprofen for pain and reducing inflammation..
You can suck ice and do
cold water rinses..
Avoid hot and spicy food..
For angular chelitis you can keep the lips coated with a thick coat of petroleum jelly and also do cold compresses..
You can take anti-fungal ointment and antibacterial ointment over the cracks to heal infection..
Hope this information helps..
Thanks and regards.
Dr. Honey Nandwani Arora.