After forge work or grinding I use a Nettie Pot and rinse out the sinuses. Oh my god you will surprised on what comes out. Once you get past the feeling of squirting salt water up your nose you will be surprised on how you feel afterwards. You can get them at Rite Aid, Walgreens, Wal-Mart etc... You can get the salt packages there as well. Plus you might notice a difference with your allergies. I did.