I have had LS for over 10 years. For itching, I took hydroxyzine 25 mg every 8 hours as needed. I no longer itch, I just burn, I use Premarin cream 1 gr twice a week and Halobetasol Propionate ointment 0.05% twice a week. With flares, I use more of each of these beginning with twice a day for two weeks then once a day for two weeks. I also take Amitriptylin 25 mg at bedtime. For numbing, I am currently using a compounded cream every 3 hours. In the past, I used Lidocaine 5% for numbing and that is included in my compounded cream at 6% along with Aquaphor ointment. You have my deepest sympathy for having this new disease added to your long Covid. With all good wishes, @joybringer1.