Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern...
As per your complain and presentation of symptoms it seems that you have got
allergic reaction to something, that can be some food or any lip product or insect bite leading to sudden occurrence of bumps on lips..
Cold sores does not occur all of a sudden and takes a few days to appear and grow..
Nothing to worry, take Allergra (
fexofenadine) 60mg twice daily for 3 days..
Avoid using any chemical containing lip product..
Avoid rubbing and pressing the lips..
You can apply
Aloevera gel for lubrication..
In case if the bumps does not resolve in 3to 4 days then you can
consult a Dermatologist and get evaluated for bacterial or Viral Infection and get treated accordingly..
Hope this information helps..
Thanks and regards..
Dr.Honey Nandwani Arora..