 [ Symptoms ] how can rh sensitization during pregnancy be prevented [ Disease ] due to the fact that you are pregnant your options are limited i would also like to ask what you mean by sinus infection as a symptom i would also like to know if you went to a health care provider for further evaluation and if you were given any medications you can continue to use the neti pot because that is a saline type of solution and safe for you to use if you have sinus congestion or stuffiness however if your sinuses are draining too much that could be causing your cough i would highly recommend talking to your pharmacist and possibly going to see a health care provider for evaluation