Try to improve your daily hygiene. Use speacial soaps (ask at the pharmacy) or washing foams with ribwort and liquorice root plant extracts (such as BromEX foamer for example) which are natural disinfectants.Use good deodorants which are able to reduce transpirationTry anti-perspirants with aluminuim chloride (such as AHC20, Yerka or Syneo for example) if you are suffering from severe sweating (medical term: hyperhidrosis)Always wear "natural" clothes, which are not too tight. Fabrics should be non-synthetic.If your b.o. is a permanent problem (medical term: bromhidrosis) you should contact a doctor (dermatologist). Discuss possible reasons, such as hidden inflammations, wrong alimentation, hormonal changes, psychological problems and so on ...
Pimples are common on everyone, even around those areas. But let your skin get some sunlight and air around there so it can breath. The pimples are caused by lots of reasons like puberty, hormone changes, dirt and more. So i suggest that you just use soap and water or body scrubs using a flannel or back scrubber to clean your pores and to prevent any more breakouts.-Hope this helps