Our expert says:
The products that you mention, apart from Drichlor, are not known to me. If you could perhaps forward me the details as to where you obtained the names (trade names I presume?), I might be able to get you additional info.
As to the problem with Drichlor: It might be that you applied it immediately after depilating your armpits, and the Drichlor caused the over-sensitized skin to react. If the soreness happens every time you apply, of course rather discontinue use totally.
A tablet called Pro-banthine might be of some help, but it causes some side effects, most notably dryness of mouth, and therefore might be unsuitable. Obtain some from your local pharmacist (avalable without prescription), for a trial period of a few days.
As a last resort, ask your family physician to refer you to a dermatologist.
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