If someone has pain in his tooth, then this prayer is proven from Hadith. I found this deed very effective. <arabic: alhamdolillahi rabble álameen ála kulli haalin makaan> As soon as you sneeze, recite this prayer at once. By the will of Allah, you will never have pain in your ear or tooth. 

Cure of Every Type of Itch: In order to treat any type of itch on the body, take leaves of neem tree, dry them and grind them. Sprinkle some water and make tablets. Take one tablet in the morning and one in the evening. By the will of Allah, all types of itch would vanish in a few days. 

Best Cure of Pimples and Sores: If someone develops pimples or sores during the summers, rub some salt on the pimples or sores during the beginning of the day; slowly and gradually pimples would remove. (Khalida Tariq)