Well yeh you can use your finger tips, just make sure you wash them afetrwards.
Im not sure but pimples are quite capable of spreading. here are some pointers along with the medication cream your taking i presume.
- try and keep showers quick and not to warm, you dont want to make your face dry as the warm water will take it off.
- If you have some on your cheeks, then it might be aggrevated by sleeping on the side of your face throughout a night.
- try & limit the amount of times you touch your face.