Painkillers (analgesics such a paracetamol) can certainly help, and are best used before an activity that is likely to aggravate the pain, rather than after it begins.

Non-steroidal anti-inflammatory drugs (NSAIDs like ibuprofen, indomethacin, diclofenac etc), reduce inflammation, and can be helpful in osteoarthritis if inflammation is a problem.

Steroid tablets and local injections are powerful anti-inflammatory treatments most commonly used for inflammatory arthritis and connective tissue disease (CTD), but are also used for short term treatment of osteoarthritis, usually as a local injection.

Disease modifying anti-rheumatic drugs (DMARDs) suppress inflammation in inflammatory arthritis and some CTD.

Biological therapies are used rheumatoid and some other inflammatory types of arthritis when DMARDs have not been effective, and act by blocking the messages between the white blood cells causing inflammation.

Gentle exercise can help ease stiffness as well as maintain strength and stamina.