Feet burning sensation diabetes. Doctor?

Hi doctor my father is having sugar, previously he is taking different sugar tablets and insulin 40 morg and 35unit night, last week went for health check up doctor suggested to take below tablet and insulin. 1) Galvus met 50/1 gm 1-0-1 after food 2) Diamicron xr 60mg tablet 1-0-1 before food 3) Volix 0.3 tablet 1-1-1 aft food 4) Human mixtard 100 iu/ml (30 unit morg and 30unit night)   Tested sugar level it's 186 fasting and 245 after meal.( It was very high for one week we called doctor he increased insulin level now sugar become normal) My question is is this safe to continue the above tablet because he is telling his body is itching during night and his feet are burning whole day (previously feet burning during night time alone). Can you please suggest some ointment for feet burning doctor?