Hi..
Can understand your concern.
As per your complain sudden irritation and tingling on the lip followed by sudden occurrence of the lump can be due to an
allergic reaction and ithe can be due to any food item if you have taken something a few minutes before or due to any medicine or if nothing is appropriate it can be a
bug bite leaving it's sting inside the lip which caused allergic reaction and lump..
It can appear as a blister when it is filled with inflammatory exudate..
I would suggest you to take anti allergic medicine like
benadryl or allegra for fast subsiding of symptoms...
You can also apply steroid based
ointments for relieving of inflammation..
In case of pain anti inflammatory painkillers like Advil or
Ibuprofen can be taken..
Cold compresses can be relieving..
In case if it gets infected and there is pus filled abscess antibiotic therapy oral and topical is needed..
Hope this information helps..
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Thanks and regards..
Dr.Honey Nandwani Arora..