We do not get the ingredients of the following preparation solved: Coll odium cicdr salicylici 40% cicdr lacti 17% FNA 50 GR

If the intention is to bring these two things into 1 bottle, I fear that this will succeed. After all, coll Odium is incompatible with an aqueous solution and vice versa.

Both products I can not find back though a salicylic acid collodion 20% with following composition:

salicylic acid 20g
ether 10g
Antiseptic Solution 10g
Coll odium with castor oil 60g

Maybe it is Possibly 40g of salicylic acid to be used in castor oil but I would definitely double the amount of and the ether and the alcohol and reduce the amount of Coll odium by 20g.

Acidi lacti 17% FNA I do not find back but I suspect that this 17g lactic acid is mixed with 83g water.

Perhaps the intention is that both products are delivered separately and used in turn?

a doctor's consultation may clarify.