This is Dr. David
I am sorry you are having some pressure and some swollen throat.
yes, you can take bayer aspirin
yes, you can take benadryl as well, 25-50mg
you can also gargle with salt water which can kill bacteria in the back of your throat.
you may need to take allergy medications to stop post nasal drip from irritating the back of your throat
there are over the counter allergy medications like Allegra, Claritin, Zyrtec which could help.
let me know if you have other questions.
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