Ive noticed some side effects on my neck from using Melameate cream continuously. There are dark, long-shaped spots, and its started itching. How can I treat this, and if I want to use it again, should I keep using it or wait for some time before starting again?

You may be experiencing a reaction to the melamet cream. To treat the dark long shaped spots and itching on your neck, you can use a mild steroid cream like hydrocortisone 1% cream twice a day for 1-2 weeks. Additionally, you can take an oral antihistamine like cetirizine 10mg once daily to help with the itching. It may be best to switch to a different medication if the current one is giving you adverse reactions.