Yes, exactly. If you have developed symptoms of allergy to Ontozry, the only safe course is to stop taking it and not try to mask these symptoms with other medications, such as antihistamines. Allergic reactions may get worse with continued use, even if the symptoms are relieved for a while.

Please consult your doctor immediately to discuss further treatment and possible alternatives to Ontosra that do not cause such a reaction. Your doctor can help you safely stop taking the medication and suggest an alternative therapy.

So I understand that no drug will help, the only way is to stop working the drug Ontozra, right?

Up to @Maluszek:

Since you are in constant contact with a doctor who has full information about your health condition and it was he who recommended the simultaneous use of an anti-allergic preparation, please follow his recommendations, although in my opinion it is worth consulting this issue with your doctor again.

Zyrtec contains cetirizine dihydrochloride, which inhibits the allergic reaction. Each body responds differently to treatment, and the occurrence of immune system disorders is observed in patients uncommonly. If the observed ailments really relate to the drug used, the body's reaction to the drug will most likely be the same each time. The only way to get rid of the symptoms is to change to another medication that you will tolerate better.

It's about the drug Ontozry, my neurologist knows about it and said that zyrtec should help clear up these symptoms. I am in constant contact with the doctor.