Need medical advice. During pregnancy?

Hello Doctor, I am currently 16 weeks pregnant. I have been having sinusitis with severe nose blockage, mucus, and occasional ear blockage feeling. For urticaria/allergy, I am taking Levohal-M. For sinusitis, I am using Azeflo nasal spray as prescribed. I am also doing steam inhalation. Recently, the ENT doctor performed a nose endoscopy and suctioned/removed mucus from my nose. Initially I felt relief, but next day,the nose blockage has come back again even after medicines and steam. Currently: - Nose still feels blocked - Mucus is still present - Sometimes ear blockage/pressure is there - No major fever Can you please advise: 2. Is this blockage normal after endoscopy and mucus suction? 3. Do I need another examination or follow-up? 4. Any safe additional treatment or precautions during pregnancy? Thank you.