An Elderly Woman Of 72 Have Been Having Chronic Severe

An elderly woman of 72 have been having chronic severe pain on both legs. She feels numb on both limbs. Heaviness is also experience upon sitting, walking or even lying down. Sometimes the pain worsens upon ambulation and relieves a little bit when resting. Feeling of dizziness and headache are part of the verbalized symptoms.

Pt has arthritis, diverticulitis, cataract, chronic pain, GERD. Colonoscopy, mammogram and bone densitiometry done about 2 years ago, and all the mentioned tests came negative (though the diverticular was found during the colonoscopy).

Pt is always taking analgesics (NSAIDs). Presently did a blood test and malaria parasite and typhoid were found. Became constipated after certain doses of the anti malaria drugs. Lost appetite and felt nauseated. Laxative was given and pt had profuse diarrhea. Pt became so weak and unable to ambulate. Diarrhea has ceased, anti malarial treatment and treatment for typhoid has continue. IV infusion was given in addition to ORT that was continuously given during the diarrheal episodes. Ambulating now with assist of 1 person, but pain is still excruciating and soles of feet feel 'foamy' on ambulation. Pt is currently taking sodium naproxen twice a day. Pt is also on B-complex multivitamin in addition to the anti malaria medication and that for typhoid. Oh a little blood was found in urine that was recently done and pt has UTI now. Hot compress has continually been administered on both limbs.
Pt had 9 kids and has been widowed since 1993. Pt did a lot of manual and physically engaging jobs to help raise kids.
What treatments can you suggest that help get the pain curbed and get those limbs agile again?