The air in my house is extremely dry to the point it’s giving me dry bloody nose on one side and…

The air in my house is extremely dry to the point it’s giving me dry bloody nose on one side and stuffy in the other plus a sore throat itchy eyes and a bit of a cough, my little guy seems to be be having the same issues even with a basic humidifier, any tips?? Might take him to the doctor tomorrow.