Contrast bath---It is a form of treatment where a limb or the entire body is immersed in warm water followed by the immediate immersion of the limb or body in ice water. This procedure is repeated several times, alternating hot and cold. Note that the treatment should always end in the ice water, as heat will induce the body's inflammatory response, while cold helps to decrease inflammation.

First consult physician and confirm that it's not other medical condition It seems to have aging process.. Your mother might need geriatric rehabilitation program.

Hello.., Gm.., Considering the age n other medical issues of ur mother.., it is advisable first to find out the cause of this slow walking problem.. This can be due to orthopedic, neurological, cardiopulmonary or mixed.. or nutritional issues also

Greetings,  sorry about the pain. She is suffering from quadriceps strain, meaning short and stiff thigh muscles.

Avoid home remedy meet physiotherapist

If one thigh is paining,sould be muscular issue  , see a manual physiotherapist If both the thighs are paining, should be a systemic issue, see a physician he will guide you where to go

There is chances of Parkinson syndrome. Check vital sign . Start Physiotherapy

Consult to the physician and get done her blood profile. Also visit to the Physiotherapist for thigh and leg pain. This may be because of ageing n she need stretching and strengthening exercises along with electrotherapy