I stopped my two allergy meds after I was diagnosed with a (benign) nasal tumor, which was removed. I didn't know if my long-standing and worsening symptoms were caused in part or wholly because of the growth. After healing, I added each back. I have no adverse effect from daily citirizine (generic Zyrtec) for occasional sneezing (it's pine pollen season here in NC). I don't need the montelukast (generic Singulair) now, so I haven't tried it again, and I also believe it was doing nothing for me before. I think you just have to experiment with these meds.
For skin symptoms, I would consult an experienced
dermatologist. The better ones can take one look and tell you what the specific cause is and what to try.
It can really pay off to get a medical expert's opinion if you haven't. I (and our internist) thought my severe nasal congestion was caused by allergies and/or the meds I have to take. It turned out I had that tumor, which kept growing and eventually closed off all my sinuses on one side. Trip to the ENT specialist, surgery, and problem completely solved!
Post Edited (DjinTonic) : 5/8/2021 9:09:10 AM (GMT-6)