- Congestion clearing sinus & allergy shower melts - These are so stinking easy to make, and you can whip them up in about 20 minutes. The end result is a vapor rub infused bath cube that you can place in the shower for instant relief from nasal congestion. Want to make your own? Let’s get started! #congestion #allergy #alergia #VaporRub #Shower #ShowerMelt via: @KatieFemiaHH