I have taken all the allergy meds out there and I am still not doing so well this season. I have a raging headache (3 days now) and have sneezed so much its making me dilerious all this and I am on ...
A Flouroquinolone can be used as a substitute for penicillin in those with an allergy.
"In patients with a history of severe penicillin allergy, combination therapy can provide adequate empirical coverage. Clindamycin combined with aztreonam or a fluoroquinolone is an effective combination."
"For patients allergic to beta-lactams, a fluoroquinolone or chloramphenicol may be considered."