This type of side effects usually do not happen with use of testosterone
injections. Only a transient redness
, swelling, irritation may be present at the local site of injection. Besides this, very rarely allergic reactions to testosterone may cause hive, itchiness and very rarely anaphylaxis
However, the pimples of the type you are describing do not seem any way related to use of testosterone injection. Your dermatologist
seem right in telling you that these may be due to dryness of skin in scalp
area. Hence treatment under guidance of your dermatologist may be a right option. In the mean time, you may use moisturizing cream on the affected area.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Dr. Satnarain Bansal, General & Family Physician