White patches on the lips and palms are commonly due to conditions like vitiligo or certain fungal or nutritional issues, and treatment depends on the exact diagnosis, so proper evaluation by a dermatologist is important. The medicines you are using, such as CNN 100 MR tablet, Whit-Care capsules, Pasitrex Ointment, and Patchex Tablet, are often prescribed in pigment-related conditions and may help in some cases, but their effectiveness depends on the cause and consistency of use. These treatments usually take weeks to months to show visible improvement, and stopping them early may delay results. It is important to protect the skin from sun exposure, maintain good nutrition, and follow your doctor's advice regularly. If you do not see improvement or if the patches are increasing, you should revisit your dermatologist for reassessment, as additional treatments like phototherapy or alternative medicines may be needed.