What is the best way to prepare a zinc-ichthyol cream that needs to be applied to the eyelid margin of the left eye with a cotton swab, and must this preparation be sterile?

How can the viscosity issue be resolved for a shampoo that is currently as liquid as water and contains 3 g lactic acid, 6 g salicylic acid, 3 g cade oil, 15 g hydrolan, 40 g sodium lauryl sulfate, and water up to 300 cc?

How can precipitation be avoided in the following preparation: aluminium chloride hexahydrate 20%, chlorhexidine 0.5%, glycerol 10%, and isopropyl alcohol and water in equal parts up to 100 ml?

How should a pharmacist prepare a compounded cream prescribed by an ENT specialist to replace Eoline UDH, containing 10 mg hydrocortisone, 900 mg oxytetracycline, 100,000 IU nystatin, and 50 mg Fungizone in 30 g Beeler base, and is it appropriate to use cetomacrogol cream buffered to pH 5 as an excipient instead of Beeler base to ensure the stability of the tetracycline?

Can oral capsules be prepared from vancomycin powder for injection, given that the required capsule dose is 250 mg and the powder for injection, according to the package leaflet, contains only lyophilized vancomycin HCl (equivalent to 500,000 IU)?

How do I add 3g of urea to 30g of Betnelan V cream?

How can I prepare the following W/O emulsion consisting of 50 g sweet almond oil, 50 g limewater, 2 g phenol, 3 g zinc oxide, and 3 g sodium borate to make a lotion?