I have read of homemade apno - and just for info's sake, the ingredients of these products are:

Neosporin:  http://dailymed.nlm.nih.gov/dailymed/archives/fdaDrugInfo.cfm?archiveid=53421


Lotrimin:
Active Ingredients
Clotrimazole - 1 %Antifungal

Inactive Ingredients
Benzyl Alcohol , Cetyl Alcohol , Cetyl Esters Wax , Octyldodecanol , Polysorbate 60 , Sorbitan Monostearate , Stearyl Alcohol , Water

1% hydrocortisone (cvs brand):

Active Ingredient: Hydrocortisone Acetate (1.12%) (Equivalent to Hydrocortisone 1%). Inactive Ingredients: Aloe Barbadensis Leaf Juice, White Petrolatum. 

Celina D, IBCLC, LLLL

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