Just Wondering If I Could Be Allergic To Doxycycline Hyclate.

Just wondering if I could be allergic to doxycycline hyclate. I have not filled the Rx my dentist prescribed yet. I am suspicious of meds since I was so very allergic to mouthwashes he had me use. I can look up the name of the mouthwash that I know I'm allergic to -- it is: PerioGuard mouthwash
Also allergic to the pain medication: oxycodone.

Never mind. I'll go to my regular doctor next week. Thank you.