> If anything, a prescription of Stromectol appears to
> be one of the safest and most effective medications
> for ruling out mite involvement.

Not really. See the abstract below.

Logan


J Am Acad Dermatol. 2003 Nov;49(5 Suppl):S272-4.

Demodex abscesses: clinical and therapeutic challenges.

Schaller M, Sander CA, Plewig G.

Department of Dermatology and Allergology, University of Munich,
Germany. Martin.Schaller@...

A 53-year-old man had a 6-week history of confluent erythematous
papules, pustules, and abscesses of the face initially limited to the
right nasolabial fold. Histologic investigation revealed a
perifollicular infiltrate with lymphocytes, histiocytes, and many
Demodex folliculorum mites. A large number of mites were seen in skin
scrapings. The skin manifestations progressed and persisted for the
following 5 years and were unresponsive to numerous antiparasitic
treatments, including repeated oral administration of ivermectin and
external application of lindane, permethrin, and benzoyl benzoate.
Therapy with oral administration of 250 mg metronidazole 3 times a
day for 2 weeks resulted in rapid and lasting recovery. Demodex
folliculitis remains a diagnostic and therapeutic challenge.
Antiparasitic therapies used against lice or scabies may fail in
control of D folliculorum mites. In the presence of clinical and
microscopic findings typical of Demodex folliculitis or abscesses,
treatment failure with acaricidal agents does not exclude the
diagnosis. Oral metronidazole seems to work in the management of this
chronic mite infestation.