This treatment is being suggested on bases of the information provided. However I would like to examine & investigate you  in detail. -Control  Hypertension, Diabetes or  metabolic disorder, if there is any.  -Any way it may be tried, --. Dolokind Plus (Mankind) [Aceclofenac100 mg +Paracetamol 350 mg] 1 tab. OD & SOS. X 5 days. --. Caldikind plus  (Mankind) 1 tab OD x 10 days. -(You may need help of your local doctor to get these medicines.) --. Fomentation with warm water. Let the part not be exposed to cold. --. Sleep on a hard bed with soft bedding. --. Use no pillow under the head. --. Avoid painful acts & activities. -- .Do mild exercises for the affected part. --.(Take help of physiotherapist or you can visit my you tube channel Dr NC Gupta.)   & see  me and my yoga; & yoga simplified. --Do not ignore, let it not become beginning of a major problem. --Do ask for a detailed treatment plan.

Based on the given history and MRI finding- looks like a prolapse disc( Slip disc) since there is leg pain ( Sciatica) there must be some irritation.

There is a disc prolapse at L5-S1 and compressing the nerve root. But looks like its mild and rest and exercises will take care of it Need to examine physically to see how severe it is or it could be

You are suffering from PIVD lumbar spine . It takes time ( another 2-3 weeks ) to completely settle.

Be assured.. u need rest and physiotherapy

Take proper rest for 4-5 days Start Physiotherapy ones pain is gone Take some muscle relaxants for time being And local application of Analgesic Gels

Slip disc it is Need proper rest, medicine

You have to stop gym for few weeks, start doing core and back muscle strengthening excercises and take muscle relaxants. Most of back pains get resolved on its own. If it is not going down in 1-2weeks. Then u must consult.