Inclusion Criteria:  Diagnose MS according to revised McDonald criteria Give written informed consent. Have an age between 18-70 years. Have stable disease without attack or progression of loss of function in the last three months. Have self-reported spasticity, scored using the numeric rating scale (NRS) which describes the average score of spasticity over the last 24 hours, at ≥ 4 (where the scale scores spasticity from 0-10, where 0 is no spasticity, and 10 is worst possible spasticity), - combined with pain in the lower extremities last 24 hours Have tried standard treatment for spasticity and pain without achieving a satisfactory effect. Stable and unchanged treatment of spasticity and pain the last month Stable and unchanged disease-modulating treatment for MS last 6 months. Function level measured by the Expanded Disability Status Scale (EDSS) 2.0-6.5 Can self-manage study equipment.  Exclusion Criteria:  Have spasticity due to a disease other than MS. Pregnancy or plan a pregnancy within the upcoming study period of 6 months. Have an ongoing infection. Have received botulinum toxin injection for spasticity within the last 4 months. Have symptoms or illness that make it difficult to participate in the study. Having planned surgery or other treatment within the coming study period of 6 months makes it difficult to participate in the study. Have functional scores outside inclusion criteria measured by EDSS 2.0-6.5 Have had disease activity beyond requirements for stable disease as described in inclusion criteria Have changed drug treatment beyond requirements for stable treatment as described in inclusion criteria.