Hi warts are viral infection of skin with HPV.The treatment is usually to cautery the wart or use cryotherpy that is to freeze it with liquid nitrogen in few sessions the warts will shed off.
AS for redness of skin after using skinlite
cream is concerned it is due to photosensitization produced by some bleaching agents like hydroquinones,
TO lighten the skin complexion you should use creams containing kojic acid
,Arbutin,,vit c and vit E.Another option for skin lightening is to use Glutathione
cap or inj.
also use sun block with spf of atleast 60.
Regarding your heel pain
grt an Xray done and consult an orthapaedic.