I haver severe allergies. my sinuses are very congested. I am taking amoxicillin, I was using benophen, along with lortadine. nasal passages very dry and no relief, constant thirst. stopped for 24 hours. using humidifier, however cannot find relief. would like to use mucinex cold, flu, and sore throat along side humidifier, and amoxicillin is this possible, and because of ongoing thirst i am drinking pedialyte, I am not so thirsty as before. Help need rest