Sinus Medication Solution

Hi! I am on the following medications:

Allegra-D 24-hour qd (for allergies)
Biaxin 500 mg bid (sinusitis)
Flovent 440 mcg bid (asthma)
Benadryl 50 mg q4h prn (I get a lot of rashes, so this is used and OK’d by my dermatologist to be taken with the Allegra-D, even though it’s 2 antihistamines — right now it’s for eczema and some contact dermatitis/hives)

… and now what I’m thinking of taking is a DuoNeb nebulizer treatment (Albuterol inhailer isn’t cutting it, and last time it was this bad, neither did the Xopenex, so I had to be put on oral steroids and DuoNeb [atrovent and albuterol]).

Can these things be taken together? Thanks so much!
Also! I forgot to add! Sometimes I get a little chest pain while doing the DuoNeb treatment… is that normal? It goes away within 10 minutes of being done.
I know it will raise my blood pressure, but my blood pressure is usually VERY low (85/55 – 95/65), and in the hospital when they gave me 4 back-to-back DuoNeb treatments, it only went up to like 100/70.

I have had headaches for 5-8 years= migraines and sinus headaches, severe sinus pressure, post nasal drip, horrible allergies, continual ear infections/ear aches, some dizziness, and feeling like I’m in a surreal/dreamlike setting, along with most recently some nausea and diarrhea and even vomiting on occasion.
I had a CT scan and i have a cyst and something else the dr. didn’t go into. I see an ENT in a little over a week.
I have been put on a rigorous antibiotic schedule as well as a nasal steroid and allergy/decongestant combo (with little relief, except allergies are better) The current headache has been present for a good solid week if not more.
Wondering what treatments people have done for this and what i should be expecting.

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