This is just a great tip to save yourself a little money. This is great for when you have a cold but Jonny gets allergies in the summer and it works like a charm for those too.
2 cups baking soda
2/3 cup water
approximately 15 drops essential oil (rosemary, eucalyptus, lavender)
Add baking soda to a bowl. Slowly add the water to make a thick paste. You may need another 1-2 Tbsp. Add the drops of essential oil. You may add more or less depending on your preference. Stir it in.
Pour the mixture into lined muffin tins. Let the mixture sit out over night. You may also bake it at 350F for 30 minutes.
When you have a shower just put the puck on the bottom of the tub. It will release the oils and clear out your head!