hi,
thank you for putting up your query on HCM.
as per your history, you may have
allergic reaction which may be caused due to
tick bite or because of contact with allergens as you were on camping.
-- scabies won't affect the centre of the body, it affects either genitals or hands and feet. so suspecting scabies on the basis of few rashes may be a wrong diagnosis.
-- since you have used permethrin for the same, it would have also caused allergic reaction.
-- since , there is no history of systemic symptoms like fever, joint, cns involvement, Lyme's disease can be ruled out. plus Lyme's disease rash looks like a bull's eye. centre will be raised and red and spreads in a circular manner.
-- I would recommend you to apply topical potent
corticosteroids like
betamethasone valerate (0.1%) cream twice a day over the lesions.
-- since you are already on oral corticosteroids, continue taking, but under the guidance of dermatologist.
-- you may take tab levocetrizine twice a day for itching .
if anything serious, do
consult a dermatologist nearby.
wishing you healthy skin.
thank you