Post-viral fatigue syndrome, and long term covid syndrome are the two syndromes among long term effects of covid-19, according to the review published by the National Institute for Health Research (NIHR)(1,2). They are affecting the respiratory system, the brain, cardiovascular system and heart, the kidneys, the gut, the liver, and the skin. The commonly seen symptoms of long covid include, but not least, fatigue, short of breath, poor memory, less concentration, insomnia, anxiety, depression, stress, palpitations, frequency urination, general aching, joints pain, et al. 
Acupuncture, partly of Chinese medicine, has a long history and rich experiences to dealing with these health problems. In the last couple of months I have seen many cases with above symptoms and most of them are good response for the treatments, either acupuncture or combination with Chinese herbal medicine. 
In terms of the techniques, scalp acupuncture are mostly unique for brain related symptoms, such as fatigue, poor memory, less concentration, insomnia, anxiety, depression, stress, etc. (3)
Reference: 
1 Mahase Elisabeth. Long covid could be four different syndromes, review suggests BMJ 2020; 371 :m3981
2 NIHR. Living with covid-19. A dynamic review of the evidence around ongoing covid-19 symptoms (often called long covid). October 2020. https://evidence.nihr.ac.uk/themedreview/living-with-covid19.
3 Wang Tianjun. Acupuncture for the Brain. Springer. (Available soon by Dec 2020) https://www.springer.com/gp/book/9783030546656