Is the formula of quinine sulfate with acetylsalicylic acid in capsules possible, or is there an incompatibility?

Is the following formulation acceptable, as the emulsion appears to break over time: 5% salicylic acid, 0.05% clobetasol propionate, 15% cetomacrogol cream, 0.2% sodium lauryl sulfate, and water up to 300 ml to form a milk?

Doctors frequently prescribe 3 to 5% salicylic acid in Huizinga cream, but the mixture becomes completely liquid; what is the remedy for this, given that Huizinga cream consists of 16 g cetyl alcohol, 20 g olive oil, 20 g glycerol, 3 g cetomacrogol 1000 or 0.5 g sodium lauryl sulfate, and aqua conservans up to 100 g?

What does the abbreviation EACA stand for in the context of a prescription for 100 g of a preparation containing 20% white vaseline in EACA?

How can I prepare ear drops containing 200 mg chloramphenicol and 50 mg prednisolone acetate for a total volume of 10 ml, specifically addressing whether prednisolone acetate dissolves in propylene glycol, or if prednisolone sodium phosphate could be used instead since it is water-soluble, even though chloramphenicol does not dissolve in water?

Is there an incompatibility between chlorhexidine and Lanette in a prescription consisting of 5 g urea, 1 g chlorhexidine, 30 g Locoid cream, 12 g Lanette N, 10 g glycerin, and aqua conservans up to 100 g, and should the ointment base be replaced by cetomacrogol cream if we prefer adding chlorhexidine in its dissolved form (gluconate) rather than rubbing the cream with chlorhexidine diacetate?

What is the preparation method for "onguent onctueux FMS" consisting of 2 g cetyl alcohol, 10 g spermaceti, and 88 g hydrogenated peanut oil, and can the hydrogenated peanut oil, which is currently no longer available, be replaced?