Start with exercises and strengthen your lower back.
Morning stiffness if its persisting just go for blood test and check for you vitamin levels.
You can visit near by physiotherapy centre for further treatment.
As physiotherapy is best helpful for you, just don't ignore it as it might start later with tingling, throbbing pain to lower legs.
Hello sir ,follow back extention exercises in physio clinic, tens with hot fomentation help to reduce pain ,avoid forward bending, avoid heavy lifting, posture correction, use spinal brace to positional spine in neutral position. Take mild pain killer in you want for short term only.
Thanks for your query on Lybrate "As" per your clinical history is concerned it is cold sore HSV-1 and it can spread from person to person by close contacts, such as kissing so discuss with your treating Doctor about prescription antiviral like Acyclovir and you can marry without any problem.
Follow lifestyle modification like this when you have blisters present-
1) Avoid skin-to-skin contact with others while blisters are present. The virus spreads most easily when there are moist secretions from the blisters.
2) Avoid sharing items. Utensils, towels, lip balm and other items can spread the virus when blisters are present.
3) Keep your hands clean. When you have a cold sore, wash your hands carefully before touching yourself and other people, especially babies.
Hope that helps.