What is the appropriate use of tea tree gel for application on a wound following surgery?

What is the recommended water-to-vaseline ratio for the magistral preparation of Pliaglis cream (containing 70.000 mg lidocaine, 70.000 mg tetracaine, 0.500 mg methyl parahydroxybenzoate, 0.100 mg propyl parahydroxybenzoate, calcium hydrogen phosphate, purified water, polyvinyl alcohol, white vaseline, and sorbitan palmitate) for a dermatologist's request to provide maximum anesthesia on a large surface area like the back during laser treatment, or can AVA be used instead with an equally strong numbing effect on the skin?

How can 'SPORTFLEX spray' (indometacine) be reformulated into an oil-based preparation at the patient's request?

What is the correct storage temperature for magistral preparations containing nystatin, given that Farmassitente (no. 138, p. 5) states they should be stored outside the refrigerator, while the Therapeutic Magistral Formulary (TMF) indicates they must be refrigerated?

Can minoxidil lotion be dispensed in a transparent bottle, given that the TMF specifies using a brown bottle and there is no information available regarding the influence of light on the lotion?

Regarding the problem of storage for self-made cetomacrogol cream, why is the freshly prepared version without preservatives only stable for 1 week, even though non-preserved, water-containing creams or ointments are thought to be stable for 3 months?

Regarding topical simvastatin, what is the best dermatological excipient for a 2% simvastatin formulation?