Inclusion criteria were patients with type 1 or type 2 diabetes, aged 20 years or older, and having Wagner grade 3 foot ulcers postsurgical debridement. Patients with poor nutritional status (albumin 10%), anemia (hemoglobin 2.5 × upper limit of normal range); requiring treatment with immunosuppressive agents, corticosteroids, chemotherapy or radiotherapy; female patients with positive pregnancy test or breastfeeding or unwilling to use appropriate contraceptive methods during study; patients with known sensitivity to essential oils or lanolin cream. Withdrawal criteria included withdrawal of consent, lost to follow up, treatment failure (defined as worsening of Wagner grade or serious infection in ulcer site), and requiring the use of a prohibited medication. Withdrawal was also a consideration if any other medical condition was present that, in the opinion of the principal investigator, indicated that continued treatment with study therapy and participation in this trial was not in the best interest of the patient. The 24 patients were randomly assigned to two equal groups comprising 12 patients in a WH-1 cream group treated with WH-1 cream containing P. amboinicus and C. asiatica twice daily for two weeks and another 12 patients in a hydrocolloid group treated with hydrocolloid fiber dressings during the same time period.