You are having exfoliative dermatitis
.. also known as erythroderma.
There are many causes.
It may follow many skin diseases.Atopic dermatitis
,Seborrhiec dermatitis. Psoriasis. ichthyosis, lichen planus
You were taking minocycline.. It may be the cause.
You consult dermatologist
for perfect diagnosis and treatment.
Antihistaminics and steroids in tappering dose may be taken under supervisison of dermatologist.
I hope you got my answer.
Dr. Ilyas Patel MD