1 If you have lichen planus of the skin that's causing itchiness, antihistamines may be prescribed to help reduce this. 2  Light treatment â there are two types of light treatment: ultraviolet B (UVB) and psoralen plus ultraviolet A (PUVA).
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Helicases are enzymes, that unwind double-stranded DNA-DNA, RNA-DNA, or RNA-RNA polynucleotides in an adenosine triphosphate (ATP)âdependent reaction. The function of the helicase of flaviviruses is assumed to be the unwinding of the plus RNA and minus RNA strands of the genome during the viral replication cycle.