Can 20mg/Doxepen and 1 Allegra (fexofenadine) a day hide/slow a Scabies reinfestation?? Took last Ivermectin 1mth ago. Random bumps still. Not spreading. Tickle/No itch

No. These medications have little to no effect on the rash itself or reinfestation but can help with itching. Reinfestation is common due to dormant eggs so a second treatment is recommended.