Do not take a shower even if the shingles blisters are dry and scabbed, because the scabs do not mean that the scabs are completely healed, and taking a shower may prolong the healing process if the scabs fall off, which is detrimental to the recovery of the disease. After scabbing, you should wait for the scab to fall off naturally and the scab to heal completely before bathing. After the scabs fall off, there may be hyperpigmentation, and in severe cases, there may be scar formation. Treatment can be continued with oral methylcobalamin or vitamin B1 to nourish the nerves. After the scab has formed, it is usually not contagious and there is no need to worry about transmission of herpes zoster to others.