Hi Nidhi,
Clove oil is easily available in any medical shop. Also, Clove oil will give a burning kind of sensation and may damage the delicate skin near by. SO remove the cotton after some time and wash thoroughly with plain water. Avoid using cold water. Also, putting raw clove at your affected part may lead to break down of clove into pieces and further getting stuck in the cavity, increasing further pain .So Clove oil is suggested more than a normal clove.