hi...thanks for writing here.Let us discuss your conditions one by one.Alopecia areata is autoimmune condition where there is a sudeen loss of hair in an area in scalp.Most of times it is self limiting recovering in about 6 months,but when it is spreading it is little bit worry.If only 2 to 3 patches are there then you can take injection tricort 10 mg in the lesion itself ,it produces good results and if multiple patches are there then systemic steroids are prescribed either inj.tricort or oral mini pulse therapy.You can discuss these things with your dermatologist.You may continue with steroid lotion along with minoxidil 5% and tacrolimus ointement.Palmoplantar psoriasis is recalcitrant condition ,Since you have disease since 10 years you can go for calcipotroil ointement ,also methtrexate therapy can help you.Always use a mild soap ,apply lot of emollient like venusia cream along with steroids,always cover areas with thin plastic bags after applying creams ,since it increases penetration of drugs and produce good results.