Question
Posted on: April 23 2013A cloudy in my gel is created to treat mosquito bites; Can it be avoided?
Answer
The question is what beats it down? This can be hydrocortisone acetate but also HEC under the influence of the high concentration of alcohol. Therefore, I would start using hydroxypropylcellulose instead of HEC as HPC is enduring high concentrations of alcohol. I would take a size glass of 100 ml and measure it in the alcohol and propylene glycol (PG). Dissolve the lidocaine and hydrocortsionacetate . Then we add HPC and let it dissolve under regular stirring with the magnetic stirrer. Cover the beaker to avoid loss of alcohol. When the gel is formed, we add very gradual water and look for a possible precipitation. If you see a precipitate, add an additional 10 ml PG. Add Diphenhydramine HCl and continue diluting with water to 100 ml. Hopefully the extra 10 ml of PG is not enough extra 5 ml.