Menthol and methyl salicylate combination topical is used to relieve minor pain caused by arthritis, simple backache, bruises, cramps, muscle strains, or sprain. This medicine is a topical analgesic.Diclofenac diethylamine is used in Pain relief. Diclofenac diethylamine is a non-steroidal anti-inflammatory drugs (NSAID). It works by blocking the release of certain chemical messengers that cause pain and inflammation (redness and swelling) on the skin.