I've been on TRT for about 10 years. I never added HCG until the last 3 months. At first I used the saline solution that came with the HCG, but I wanted to keep the HCG longer so I switched to bacteriostatic water. I'm having an allergic reaction (hard, sore, itchy lump at injection site) to the bacteriostatic water. I never had issues with the HCG reconstituted with the saline. Has anyone else had this problem? Are there different types of bacteriostatic water, so I might be able to try another? I've attached a pic of the brand I bought off Amazon.