 [ Symptoms ] i have a large hard knot beneath the skin of my left cheek approx 1 in from the corner of my lips i have gone to an np who diagnosed it as an abscess prescribed antibiotics are clindamycin & a substitute for bactrim swelling started april 6th the next day is when i visited the np the following day i went to an er due to more aggressive facial swelling the dr there gave me a cat scan & diagnosed the swelling as periorbital cellulitis due to dental decay at this point i had explained to the dr that none of my teeth were bothering me in any way  most of the swelling has come and gone but i still have the hard knot that remains what could be causing this knot will it go away what can i do notes from cat scans significant left periorbital & left facial soft tissue swelling & stranding of subcutaneous fat no discrete abscess is identified impression pansinusitis predominantly involving the right paranasal sinuses [ Disease ] excedrin migraine contains acetaminophen 250 mg aspirin 250 mg and caffeine 65 mg aspirin and products containing aspirin should not be used for children due to the increased risk of reye is syndrome the exact cause or cure for reye is syndrome is unknown however we do know that children taking aspirin increases the risk which attacks the organs of the body since there is not a cure we do not want to take the risk of harming the child i would not give your child excedrin migraine pay attention to the label on all over the counter medication to make sure you taking appropriately and so you know the recommended age as well