YES. You can find it from Watson's or Manning's Pharmacy, as well as community pharmacy.
For Physiogel cream, it costs ~$85/75 ml in community pharmacy.
Doctor will prescribe 1% Hydrocortisone Acetate for short-term treatment.
Instead of using PHYSIOGEL Cleanser, a more economical way, you may also try to use cotton ball with sodium solution (生理鹽水) to clean your baby's skin. 棉花球抺完一個位置(如左眼)就要丟,唔好用黎抺第二個位置(如右眼),以防交差感染.
The following information may be useful to you too.