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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A helicase is an enzyme that unzips joined strands of deoxyribonucleic acid (DNA) or ribonucleic acid (RNA). It usually moves in one direction down a double-stranded DNA molecule or self-bound RNA molecule, breaking the hydrogen bonds between the complementary nucleotide base pairs.