An oil in water foamable emulsion that is stable in its pre-dispensed state comprising: (i) 4.5-55% by weight of composition of a non-volatile solvent that, at 20-30°C, is liquid and has a solubility in distilled water of less than 1g per 100ml; (ii) 0.09 to 5.5% by weight of composition of surface-active agent selected from the group consisting of polysorbates, polyoxyethylene fatty acid esters, poly(oxyethylene) alkyl ethers, sucrose esters, partial esters of sorbitol and sorbitol anhydrides, mono or diglycerides, isoceteth-20, sodium methyl cocoyl taurate, sodium methyl oleoyl taurate, sodium lauryl sulfate, triethanolamine lauryl sulfate and betaines; (iii) 0.09 to 5.5% by weight of gelling agent selected from the group consisting of locust bean gum, sodium alginate, sodium caseinate, egg albumin, gelatin agar, carrageenan gum, xanthan gum, quince seed extract, tragacanth gum, starch, chemically modified starches, cellulose ethers, micro-crystalline cellulose, polyvinylalcohol, guar gum, hydroxypropyl guar gum, soluble starch, cationic celluloses, cationic guars, carboxyvinyl polymers, polyvinylpyrrolidone, polyacrylic acid polymers, polymethacrylic acid polymers, polyvinyl acetate polymers, polyvinyl chloride polymers, polyvinylidene chloride polymers, acrylic acid/ethyl acrylate copolymers, acrylate copolymer, silicone polymers, acetylated starch derivatives, amphiphilic modified starches, amphiphilic block copolymers of ethylene oxide, propylene oxide and/or propylene glycol; and any combination thereof; (iv) a therapeutic enhancer selected from the group consisting of propylene glycol, butylene glycols, glycerol, pentaerythritol, sorbitol, mannitol, oligosaccharides, dimethyl isosorbide, monooleate of ethoxylated glycerides having 8 to 10 ethylene oxide units, polyethylene glycol 200-600, transcutol, glycofurol and cyclodextrins; (v) a therapeutically effective concentration of azelaic acid; and (vi) a liquefied gas propellant at a concentration of 2.7% to 19.8% by weight of the total composition; wherein the emulsion contains no more than 7.5% by weight of any aliphatic alcohol, having one to six carbon atoms in their carbon backbone. (i) 4.5-55% by weight of composition of a non-volatile solvent that, at 20-30°C, is liquid and has a solubility in distilled water of less than 1g per 100ml; (ii) 0.09 to 5.5% by weight of composition of surface-active agent selected from the group consisting of polysorbates, polyoxyethylene fatty acid esters, poly(oxyethylene) alkyl ethers, sucrose esters, partial esters of sorbitol and sorbitol anhydrides, mono or diglycerides, isoceteth-20, sodium methyl cocoyl taurate, sodium methyl oleoyl taurate, sodium lauryl sulfate, triethanolamine lauryl sulfate and betaines; (iii) 0.09 to 5.5% by weight of gelling agent selected from the group consisting of locust bean gum, sodium alginate, sodium caseinate, egg albumin, gelatin agar, carrageenan gum, xanthan gum, quince seed extract, tragacanth gum, starch, chemically modified starches, cellulose ethers, micro-crystalline cellulose, polyvinylalcohol, guar gum, hydroxypropyl guar gum, soluble starch, cationic celluloses, cationic guars, carboxyvinyl polymers, polyvinylpyrrolidone, polyacrylic acid polymers, polymethacrylic acid polymers, polyvinyl acetate polymers, polyvinyl chloride polymers, polyvinylidene chloride polymers, acrylic acid/ethyl acrylate copolymers, acrylate copolymer, silicone polymers, acetylated starch derivatives, amphiphilic modified starches, amphiphilic block copolymers of ethylene oxide, propylene oxide and/or propylene glycol; and any combination thereof; (iv) a therapeutic enhancer selected from the group consisting of propylene glycol, butylene glycols, glycerol, pentaerythritol, sorbitol, mannitol, oligosaccharides, dimethyl isosorbide, monooleate of ethoxylated glycerides having 8 to 10 ethylene oxide units, polyethylene glycol 200-600, transcutol, glycofurol and cyclodextrins; (v) a therapeutically effective concentration of azelaic acid; and (vi) a liquefied gas propellant at a concentration of 2.7% to 19.8% by weight of the total composition;