Hi..
Welcome to HEALTHCARE MAGIC..
I am sorry to hear about your problem and will try me level best to solve it to the best of my knowledge and experience...
As per your complain burning sensation and swelling of lips along with
redness on the underside of the lips seems to be most probably due to
allergic reaction and can be due to any food or medication..
Red yeast rice can be a cause for the symptoms that you are facing as it might be causing you allergic reaction..
It does not seems like thrush as it represents as thick white cheesy patches and it seems to be more of allergic reaction..
I would suggest you to consult an Allergist and get evaluated and he can do a thorough clinical evaluation and advise you accordingly..
As of now you can take anti
histamine like
benadryl to reduce the swelling and burning sensation..
Do cool compresses over the lips..
Do cool water rinses and suck ice pops..
Avoid spicy foods and drink plenty of water..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.